Commit | Line | Data |
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252b5132 | 1 | /* POWER/PowerPC XCOFF linker support. |
66eb6687 | 2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
f13a99db | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support. |
5 | ||
eb1e0e80 | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
eb1e0e80 NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
eb1e0e80 | 11 | (at your option) any later version. |
252b5132 | 12 | |
eb1e0e80 NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
eb1e0e80 NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 RH |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "coff/internal.h" | |
beb1bf64 | 28 | #include "coff/xcoff.h" |
252b5132 | 29 | #include "libcoff.h" |
beb1bf64 | 30 | #include "libxcoff.h" |
252b5132 RH |
31 | |
32 | /* This file holds the XCOFF linker code. */ | |
33 | ||
116c20d2 NC |
34 | #undef STRING_SIZE_SIZE |
35 | #define STRING_SIZE_SIZE 4 | |
252b5132 | 36 | |
252b5132 RH |
37 | /* We reuse the SEC_ROM flag as a mark flag for garbage collection. |
38 | This flag will only be used on input sections. */ | |
39 | ||
40 | #define SEC_MARK (SEC_ROM) | |
41 | ||
252b5132 RH |
42 | /* The list of import files. */ |
43 | ||
dc810e39 AM |
44 | struct xcoff_import_file |
45 | { | |
252b5132 RH |
46 | /* The next entry in the list. */ |
47 | struct xcoff_import_file *next; | |
48 | /* The path. */ | |
49 | const char *path; | |
50 | /* The file name. */ | |
51 | const char *file; | |
52 | /* The member name. */ | |
53 | const char *member; | |
54 | }; | |
55 | ||
252b5132 RH |
56 | /* Information we keep for each section in the output file during the |
57 | final link phase. */ | |
58 | ||
dc810e39 AM |
59 | struct xcoff_link_section_info |
60 | { | |
252b5132 RH |
61 | /* The relocs to be output. */ |
62 | struct internal_reloc *relocs; | |
63 | /* For each reloc against a global symbol whose index was not known | |
64 | when the reloc was handled, the global hash table entry. */ | |
65 | struct xcoff_link_hash_entry **rel_hashes; | |
66 | /* If there is a TOC relative reloc against a global symbol, and the | |
67 | index of the TOC symbol is not known when the reloc was handled, | |
68 | an entry is added to this linked list. This is not an array, | |
69 | like rel_hashes, because this case is quite uncommon. */ | |
116c20d2 NC |
70 | struct xcoff_toc_rel_hash |
71 | { | |
fbc4fff4 KH |
72 | struct xcoff_toc_rel_hash *next; |
73 | struct xcoff_link_hash_entry *h; | |
74 | struct internal_reloc *rel; | |
75 | } *toc_rel_hashes; | |
252b5132 RH |
76 | }; |
77 | ||
78 | /* Information that we pass around while doing the final link step. */ | |
79 | ||
dc810e39 AM |
80 | struct xcoff_final_link_info |
81 | { | |
252b5132 RH |
82 | /* General link information. */ |
83 | struct bfd_link_info *info; | |
84 | /* Output BFD. */ | |
85 | bfd *output_bfd; | |
86 | /* Hash table for long symbol names. */ | |
87 | struct bfd_strtab_hash *strtab; | |
88 | /* Array of information kept for each output section, indexed by the | |
89 | target_index field. */ | |
90 | struct xcoff_link_section_info *section_info; | |
91 | /* Symbol index of last C_FILE symbol (-1 if none). */ | |
92 | long last_file_index; | |
93 | /* Contents of last C_FILE symbol. */ | |
94 | struct internal_syment last_file; | |
95 | /* Symbol index of TOC symbol. */ | |
96 | long toc_symindx; | |
97 | /* Start of .loader symbols. */ | |
beb1bf64 | 98 | bfd_byte *ldsym; |
252b5132 | 99 | /* Next .loader reloc to swap out. */ |
beb1bf64 | 100 | bfd_byte *ldrel; |
252b5132 RH |
101 | /* File position of start of line numbers. */ |
102 | file_ptr line_filepos; | |
103 | /* Buffer large enough to hold swapped symbols of any input file. */ | |
104 | struct internal_syment *internal_syms; | |
105 | /* Buffer large enough to hold output indices of symbols of any | |
106 | input file. */ | |
107 | long *sym_indices; | |
108 | /* Buffer large enough to hold output symbols for any input file. */ | |
109 | bfd_byte *outsyms; | |
110 | /* Buffer large enough to hold external line numbers for any input | |
111 | section. */ | |
112 | bfd_byte *linenos; | |
113 | /* Buffer large enough to hold any input section. */ | |
114 | bfd_byte *contents; | |
115 | /* Buffer large enough to hold external relocs of any input section. */ | |
116 | bfd_byte *external_relocs; | |
117 | }; | |
118 | ||
116c20d2 NC |
119 | static bfd_boolean xcoff_mark (struct bfd_link_info *, asection *); |
120 | ||
252b5132 | 121 | \f |
252b5132 | 122 | |
252b5132 RH |
123 | /* Routines to read XCOFF dynamic information. This don't really |
124 | belong here, but we already have the ldsym manipulation routines | |
125 | here. */ | |
126 | ||
127 | /* Read the contents of a section. */ | |
128 | ||
b34976b6 | 129 | static bfd_boolean |
116c20d2 | 130 | xcoff_get_section_contents (bfd *abfd, asection *sec) |
252b5132 RH |
131 | { |
132 | if (coff_section_data (abfd, sec) == NULL) | |
133 | { | |
dc810e39 | 134 | bfd_size_type amt = sizeof (struct coff_section_tdata); |
116c20d2 | 135 | |
dc810e39 | 136 | sec->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 | 137 | if (sec->used_by_bfd == NULL) |
b34976b6 | 138 | return FALSE; |
252b5132 RH |
139 | } |
140 | ||
141 | if (coff_section_data (abfd, sec)->contents == NULL) | |
142 | { | |
eea6121a | 143 | bfd_byte *contents; |
116c20d2 NC |
144 | |
145 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) | |
eea6121a AM |
146 | { |
147 | if (contents != NULL) | |
148 | free (contents); | |
149 | return FALSE; | |
150 | } | |
151 | coff_section_data (abfd, sec)->contents = contents; | |
252b5132 RH |
152 | } |
153 | ||
b34976b6 | 154 | return TRUE; |
252b5132 RH |
155 | } |
156 | ||
157 | /* Get the size required to hold the dynamic symbols. */ | |
158 | ||
159 | long | |
116c20d2 | 160 | _bfd_xcoff_get_dynamic_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
161 | { |
162 | asection *lsec; | |
163 | bfd_byte *contents; | |
164 | struct internal_ldhdr ldhdr; | |
165 | ||
166 | if ((abfd->flags & DYNAMIC) == 0) | |
167 | { | |
168 | bfd_set_error (bfd_error_invalid_operation); | |
169 | return -1; | |
170 | } | |
171 | ||
172 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
173 | if (lsec == NULL) | |
174 | { | |
175 | bfd_set_error (bfd_error_no_symbols); | |
176 | return -1; | |
177 | } | |
178 | ||
179 | if (! xcoff_get_section_contents (abfd, lsec)) | |
180 | return -1; | |
181 | contents = coff_section_data (abfd, lsec)->contents; | |
182 | ||
116c20d2 | 183 | bfd_xcoff_swap_ldhdr_in (abfd, (void *) contents, &ldhdr); |
252b5132 RH |
184 | |
185 | return (ldhdr.l_nsyms + 1) * sizeof (asymbol *); | |
186 | } | |
187 | ||
188 | /* Get the dynamic symbols. */ | |
189 | ||
190 | long | |
116c20d2 | 191 | _bfd_xcoff_canonicalize_dynamic_symtab (bfd *abfd, asymbol **psyms) |
252b5132 RH |
192 | { |
193 | asection *lsec; | |
194 | bfd_byte *contents; | |
195 | struct internal_ldhdr ldhdr; | |
196 | const char *strings; | |
beb1bf64 | 197 | bfd_byte *elsym, *elsymend; |
252b5132 RH |
198 | coff_symbol_type *symbuf; |
199 | ||
200 | if ((abfd->flags & DYNAMIC) == 0) | |
201 | { | |
202 | bfd_set_error (bfd_error_invalid_operation); | |
203 | return -1; | |
204 | } | |
205 | ||
206 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
207 | if (lsec == NULL) | |
208 | { | |
209 | bfd_set_error (bfd_error_no_symbols); | |
210 | return -1; | |
211 | } | |
212 | ||
213 | if (! xcoff_get_section_contents (abfd, lsec)) | |
214 | return -1; | |
215 | contents = coff_section_data (abfd, lsec)->contents; | |
216 | ||
b34976b6 | 217 | coff_section_data (abfd, lsec)->keep_contents = TRUE; |
252b5132 | 218 | |
beb1bf64 | 219 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 RH |
220 | |
221 | strings = (char *) contents + ldhdr.l_stoff; | |
222 | ||
116c20d2 | 223 | symbuf = bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (* symbuf)); |
252b5132 RH |
224 | if (symbuf == NULL) |
225 | return -1; | |
226 | ||
beb1bf64 TR |
227 | elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr); |
228 | ||
229 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd); | |
230 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd), symbuf++, psyms++) | |
252b5132 RH |
231 | { |
232 | struct internal_ldsym ldsym; | |
233 | ||
beb1bf64 | 234 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
235 | |
236 | symbuf->symbol.the_bfd = abfd; | |
237 | ||
238 | if (ldsym._l._l_l._l_zeroes == 0) | |
239 | symbuf->symbol.name = strings + ldsym._l._l_l._l_offset; | |
240 | else | |
241 | { | |
beb1bf64 TR |
242 | char *c; |
243 | ||
dc810e39 | 244 | c = bfd_alloc (abfd, (bfd_size_type) SYMNMLEN + 1); |
beb1bf64 TR |
245 | if (c == NULL) |
246 | return -1; | |
247 | memcpy (c, ldsym._l._l_name, SYMNMLEN); | |
248 | c[SYMNMLEN] = '\0'; | |
249 | symbuf->symbol.name = c; | |
252b5132 RH |
250 | } |
251 | ||
252 | if (ldsym.l_smclas == XMC_XO) | |
253 | symbuf->symbol.section = bfd_abs_section_ptr; | |
254 | else | |
255 | symbuf->symbol.section = coff_section_from_bfd_index (abfd, | |
256 | ldsym.l_scnum); | |
257 | symbuf->symbol.value = ldsym.l_value - symbuf->symbol.section->vma; | |
258 | ||
259 | symbuf->symbol.flags = BSF_NO_FLAGS; | |
260 | if ((ldsym.l_smtype & L_EXPORT) != 0) | |
261 | symbuf->symbol.flags |= BSF_GLOBAL; | |
262 | ||
263 | /* FIXME: We have no way to record the other information stored | |
b34976b6 | 264 | with the loader symbol. */ |
252b5132 RH |
265 | *psyms = (asymbol *) symbuf; |
266 | } | |
267 | ||
268 | *psyms = NULL; | |
269 | ||
270 | return ldhdr.l_nsyms; | |
271 | } | |
272 | ||
273 | /* Get the size required to hold the dynamic relocs. */ | |
274 | ||
275 | long | |
116c20d2 | 276 | _bfd_xcoff_get_dynamic_reloc_upper_bound (bfd *abfd) |
252b5132 RH |
277 | { |
278 | asection *lsec; | |
279 | bfd_byte *contents; | |
280 | struct internal_ldhdr ldhdr; | |
281 | ||
282 | if ((abfd->flags & DYNAMIC) == 0) | |
283 | { | |
284 | bfd_set_error (bfd_error_invalid_operation); | |
285 | return -1; | |
286 | } | |
287 | ||
288 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
289 | if (lsec == NULL) | |
290 | { | |
291 | bfd_set_error (bfd_error_no_symbols); | |
292 | return -1; | |
293 | } | |
294 | ||
295 | if (! xcoff_get_section_contents (abfd, lsec)) | |
296 | return -1; | |
297 | contents = coff_section_data (abfd, lsec)->contents; | |
298 | ||
beb1bf64 | 299 | bfd_xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); |
252b5132 RH |
300 | |
301 | return (ldhdr.l_nreloc + 1) * sizeof (arelent *); | |
302 | } | |
303 | ||
252b5132 RH |
304 | /* Get the dynamic relocs. */ |
305 | ||
306 | long | |
116c20d2 NC |
307 | _bfd_xcoff_canonicalize_dynamic_reloc (bfd *abfd, |
308 | arelent **prelocs, | |
309 | asymbol **syms) | |
252b5132 RH |
310 | { |
311 | asection *lsec; | |
312 | bfd_byte *contents; | |
313 | struct internal_ldhdr ldhdr; | |
314 | arelent *relbuf; | |
beb1bf64 | 315 | bfd_byte *elrel, *elrelend; |
252b5132 RH |
316 | |
317 | if ((abfd->flags & DYNAMIC) == 0) | |
318 | { | |
319 | bfd_set_error (bfd_error_invalid_operation); | |
320 | return -1; | |
321 | } | |
322 | ||
323 | lsec = bfd_get_section_by_name (abfd, ".loader"); | |
324 | if (lsec == NULL) | |
325 | { | |
326 | bfd_set_error (bfd_error_no_symbols); | |
327 | return -1; | |
328 | } | |
329 | ||
330 | if (! xcoff_get_section_contents (abfd, lsec)) | |
331 | return -1; | |
332 | contents = coff_section_data (abfd, lsec)->contents; | |
333 | ||
beb1bf64 | 334 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 | 335 | |
116c20d2 | 336 | relbuf = bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent)); |
252b5132 RH |
337 | if (relbuf == NULL) |
338 | return -1; | |
339 | ||
beb1bf64 TR |
340 | elrel = contents + bfd_xcoff_loader_reloc_offset(abfd, &ldhdr); |
341 | ||
342 | elrelend = elrel + ldhdr.l_nreloc * bfd_xcoff_ldrelsz(abfd); | |
dc810e39 AM |
343 | for (; elrel < elrelend; elrel += bfd_xcoff_ldrelsz(abfd), relbuf++, |
344 | prelocs++) | |
252b5132 RH |
345 | { |
346 | struct internal_ldrel ldrel; | |
347 | ||
beb1bf64 | 348 | bfd_xcoff_swap_ldrel_in (abfd, elrel, &ldrel); |
252b5132 RH |
349 | |
350 | if (ldrel.l_symndx >= 3) | |
351 | relbuf->sym_ptr_ptr = syms + (ldrel.l_symndx - 3); | |
352 | else | |
353 | { | |
354 | const char *name; | |
355 | asection *sec; | |
356 | ||
357 | switch (ldrel.l_symndx) | |
358 | { | |
359 | case 0: | |
360 | name = ".text"; | |
361 | break; | |
362 | case 1: | |
363 | name = ".data"; | |
364 | break; | |
365 | case 2: | |
366 | name = ".bss"; | |
367 | break; | |
368 | default: | |
369 | abort (); | |
370 | break; | |
371 | } | |
372 | ||
373 | sec = bfd_get_section_by_name (abfd, name); | |
374 | if (sec == NULL) | |
375 | { | |
376 | bfd_set_error (bfd_error_bad_value); | |
377 | return -1; | |
378 | } | |
379 | ||
380 | relbuf->sym_ptr_ptr = sec->symbol_ptr_ptr; | |
381 | } | |
382 | ||
383 | relbuf->address = ldrel.l_vaddr; | |
384 | relbuf->addend = 0; | |
385 | ||
386 | /* Most dynamic relocs have the same type. FIXME: This is only | |
b34976b6 AM |
387 | correct if ldrel.l_rtype == 0. In other cases, we should use |
388 | a different howto. */ | |
beb1bf64 | 389 | relbuf->howto = bfd_xcoff_dynamic_reloc_howto(abfd); |
252b5132 RH |
390 | |
391 | /* FIXME: We have no way to record the l_rsecnm field. */ | |
392 | ||
393 | *prelocs = relbuf; | |
394 | } | |
395 | ||
396 | *prelocs = NULL; | |
397 | ||
398 | return ldhdr.l_nreloc; | |
399 | } | |
400 | \f | |
401 | /* Routine to create an entry in an XCOFF link hash table. */ | |
402 | ||
403 | static struct bfd_hash_entry * | |
116c20d2 NC |
404 | xcoff_link_hash_newfunc (struct bfd_hash_entry *entry, |
405 | struct bfd_hash_table *table, | |
406 | const char *string) | |
252b5132 RH |
407 | { |
408 | struct xcoff_link_hash_entry *ret = (struct xcoff_link_hash_entry *) entry; | |
409 | ||
410 | /* Allocate the structure if it has not already been allocated by a | |
411 | subclass. */ | |
116c20d2 NC |
412 | if (ret == NULL) |
413 | ret = bfd_hash_allocate (table, sizeof (* ret)); | |
414 | if (ret == NULL) | |
415 | return NULL; | |
252b5132 RH |
416 | |
417 | /* Call the allocation method of the superclass. */ | |
418 | ret = ((struct xcoff_link_hash_entry *) | |
419 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
420 | table, string)); | |
421 | if (ret != NULL) | |
422 | { | |
423 | /* Set local fields. */ | |
424 | ret->indx = -1; | |
425 | ret->toc_section = NULL; | |
426 | ret->u.toc_indx = -1; | |
427 | ret->descriptor = NULL; | |
428 | ret->ldsym = NULL; | |
429 | ret->ldindx = -1; | |
430 | ret->flags = 0; | |
431 | ret->smclas = XMC_UA; | |
432 | } | |
433 | ||
434 | return (struct bfd_hash_entry *) ret; | |
435 | } | |
436 | ||
437 | /* Create a XCOFF link hash table. */ | |
438 | ||
439 | struct bfd_link_hash_table * | |
116c20d2 | 440 | _bfd_xcoff_bfd_link_hash_table_create (bfd *abfd) |
252b5132 RH |
441 | { |
442 | struct xcoff_link_hash_table *ret; | |
116c20d2 | 443 | bfd_size_type amt = sizeof (* ret); |
252b5132 | 444 | |
116c20d2 NC |
445 | ret = bfd_malloc (amt); |
446 | if (ret == NULL) | |
447 | return NULL; | |
66eb6687 AM |
448 | if (!_bfd_link_hash_table_init (&ret->root, abfd, xcoff_link_hash_newfunc, |
449 | sizeof (struct xcoff_link_hash_entry))) | |
252b5132 | 450 | { |
e2d34d7d | 451 | free (ret); |
116c20d2 | 452 | return NULL; |
252b5132 RH |
453 | } |
454 | ||
455 | ret->debug_strtab = _bfd_xcoff_stringtab_init (); | |
456 | ret->debug_section = NULL; | |
457 | ret->loader_section = NULL; | |
458 | ret->ldrel_count = 0; | |
459 | memset (&ret->ldhdr, 0, sizeof (struct internal_ldhdr)); | |
460 | ret->linkage_section = NULL; | |
461 | ret->toc_section = NULL; | |
462 | ret->descriptor_section = NULL; | |
463 | ret->imports = NULL; | |
464 | ret->file_align = 0; | |
b34976b6 AM |
465 | ret->textro = FALSE; |
466 | ret->gc = FALSE; | |
252b5132 RH |
467 | memset (ret->special_sections, 0, sizeof ret->special_sections); |
468 | ||
469 | /* The linker will always generate a full a.out header. We need to | |
470 | record that fact now, before the sizeof_headers routine could be | |
471 | called. */ | |
b34976b6 | 472 | xcoff_data (abfd)->full_aouthdr = TRUE; |
252b5132 RH |
473 | |
474 | return &ret->root; | |
475 | } | |
476 | ||
e2d34d7d DJ |
477 | /* Free a XCOFF link hash table. */ |
478 | ||
479 | void | |
116c20d2 | 480 | _bfd_xcoff_bfd_link_hash_table_free (struct bfd_link_hash_table *hash) |
e2d34d7d DJ |
481 | { |
482 | struct xcoff_link_hash_table *ret = (struct xcoff_link_hash_table *) hash; | |
483 | ||
484 | _bfd_stringtab_free (ret->debug_strtab); | |
485 | bfd_hash_table_free (&ret->root.table); | |
486 | free (ret); | |
487 | } | |
252b5132 RH |
488 | \f |
489 | /* Read internal relocs for an XCOFF csect. This is a wrapper around | |
490 | _bfd_coff_read_internal_relocs which tries to take advantage of any | |
491 | relocs which may have been cached for the enclosing section. */ | |
492 | ||
493 | static struct internal_reloc * | |
116c20d2 NC |
494 | xcoff_read_internal_relocs (bfd *abfd, |
495 | asection *sec, | |
496 | bfd_boolean cache, | |
497 | bfd_byte *external_relocs, | |
498 | bfd_boolean require_internal, | |
499 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
500 | { |
501 | if (coff_section_data (abfd, sec) != NULL | |
502 | && coff_section_data (abfd, sec)->relocs == NULL | |
503 | && xcoff_section_data (abfd, sec) != NULL) | |
504 | { | |
505 | asection *enclosing; | |
506 | ||
507 | enclosing = xcoff_section_data (abfd, sec)->enclosing; | |
508 | ||
509 | if (enclosing != NULL | |
510 | && (coff_section_data (abfd, enclosing) == NULL | |
511 | || coff_section_data (abfd, enclosing)->relocs == NULL) | |
512 | && cache | |
513 | && enclosing->reloc_count > 0) | |
514 | { | |
b34976b6 | 515 | if (_bfd_coff_read_internal_relocs (abfd, enclosing, TRUE, |
116c20d2 | 516 | external_relocs, FALSE, NULL) |
252b5132 RH |
517 | == NULL) |
518 | return NULL; | |
519 | } | |
520 | ||
521 | if (enclosing != NULL | |
522 | && coff_section_data (abfd, enclosing) != NULL | |
523 | && coff_section_data (abfd, enclosing)->relocs != NULL) | |
524 | { | |
525 | size_t off; | |
526 | ||
527 | off = ((sec->rel_filepos - enclosing->rel_filepos) | |
528 | / bfd_coff_relsz (abfd)); | |
beb1bf64 | 529 | |
252b5132 RH |
530 | if (! require_internal) |
531 | return coff_section_data (abfd, enclosing)->relocs + off; | |
532 | memcpy (internal_relocs, | |
533 | coff_section_data (abfd, enclosing)->relocs + off, | |
534 | sec->reloc_count * sizeof (struct internal_reloc)); | |
535 | return internal_relocs; | |
536 | } | |
537 | } | |
538 | ||
539 | return _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, | |
540 | require_internal, internal_relocs); | |
541 | } | |
542 | \f | |
116c20d2 NC |
543 | /* This function is used to add symbols from a dynamic object to the |
544 | global symbol table. */ | |
252b5132 | 545 | |
b34976b6 | 546 | static bfd_boolean |
116c20d2 | 547 | xcoff_link_add_dynamic_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
548 | { |
549 | asection *lsec; | |
beb1bf64 | 550 | bfd_byte *contents; |
252b5132 RH |
551 | struct internal_ldhdr ldhdr; |
552 | const char *strings; | |
beb1bf64 | 553 | bfd_byte *elsym, *elsymend; |
116c20d2 NC |
554 | struct xcoff_import_file *n; |
555 | const char *bname; | |
556 | const char *mname; | |
557 | const char *s; | |
558 | unsigned int c; | |
559 | struct xcoff_import_file **pp; | |
252b5132 | 560 | |
116c20d2 NC |
561 | /* We can only handle a dynamic object if we are generating an XCOFF |
562 | output file. */ | |
f13a99db | 563 | if (info->output_bfd->xvec != abfd->xvec) |
116c20d2 NC |
564 | { |
565 | (*_bfd_error_handler) | |
566 | (_("%s: XCOFF shared object when not producing XCOFF output"), | |
567 | bfd_get_filename (abfd)); | |
568 | bfd_set_error (bfd_error_invalid_operation); | |
569 | return FALSE; | |
570 | } | |
252b5132 | 571 | |
116c20d2 NC |
572 | /* The symbols we use from a dynamic object are not the symbols in |
573 | the normal symbol table, but, rather, the symbols in the export | |
574 | table. If there is a global symbol in a dynamic object which is | |
575 | not in the export table, the loader will not be able to find it, | |
576 | so we don't want to find it either. Also, on AIX 4.1.3, shr.o in | |
577 | libc.a has symbols in the export table which are not in the | |
578 | symbol table. */ | |
579 | ||
580 | /* Read in the .loader section. FIXME: We should really use the | |
581 | o_snloader field in the a.out header, rather than grabbing the | |
582 | section by name. */ | |
252b5132 RH |
583 | lsec = bfd_get_section_by_name (abfd, ".loader"); |
584 | if (lsec == NULL) | |
585 | { | |
116c20d2 NC |
586 | (*_bfd_error_handler) |
587 | (_("%s: dynamic object with no .loader section"), | |
588 | bfd_get_filename (abfd)); | |
589 | bfd_set_error (bfd_error_no_symbols); | |
590 | return FALSE; | |
252b5132 RH |
591 | } |
592 | ||
593 | if (! xcoff_get_section_contents (abfd, lsec)) | |
b34976b6 | 594 | return FALSE; |
beb1bf64 TR |
595 | contents = coff_section_data (abfd, lsec)->contents; |
596 | ||
116c20d2 NC |
597 | /* Remove the sections from this object, so that they do not get |
598 | included in the link. */ | |
599 | bfd_section_list_clear (abfd); | |
600 | ||
beb1bf64 | 601 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
252b5132 | 602 | |
beb1bf64 | 603 | strings = (char *) contents + ldhdr.l_stoff; |
252b5132 | 604 | |
beb1bf64 | 605 | elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr); |
252b5132 | 606 | |
beb1bf64 | 607 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd); |
116c20d2 | 608 | |
beb1bf64 | 609 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd)) |
252b5132 RH |
610 | { |
611 | struct internal_ldsym ldsym; | |
612 | char nambuf[SYMNMLEN + 1]; | |
613 | const char *name; | |
116c20d2 | 614 | struct xcoff_link_hash_entry *h; |
252b5132 | 615 | |
beb1bf64 | 616 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
617 | |
618 | /* We are only interested in exported symbols. */ | |
619 | if ((ldsym.l_smtype & L_EXPORT) == 0) | |
620 | continue; | |
621 | ||
622 | if (ldsym._l._l_l._l_zeroes == 0) | |
623 | name = strings + ldsym._l._l_l._l_offset; | |
624 | else | |
625 | { | |
626 | memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); | |
627 | nambuf[SYMNMLEN] = '\0'; | |
628 | name = nambuf; | |
629 | } | |
630 | ||
116c20d2 NC |
631 | /* Normally we could not call xcoff_link_hash_lookup in an add |
632 | symbols routine, since we might not be using an XCOFF hash | |
633 | table. However, we verified above that we are using an XCOFF | |
b34976b6 | 634 | hash table. */ |
252b5132 | 635 | |
116c20d2 NC |
636 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE, |
637 | TRUE, TRUE); | |
638 | if (h == NULL) | |
639 | return FALSE; | |
252b5132 | 640 | |
116c20d2 | 641 | h->flags |= XCOFF_DEF_DYNAMIC; |
252b5132 | 642 | |
116c20d2 NC |
643 | /* If the symbol is undefined, and the BFD it was found in is |
644 | not a dynamic object, change the BFD to this dynamic object, | |
645 | so that we can get the correct import file ID. */ | |
646 | if ((h->root.type == bfd_link_hash_undefined | |
647 | || h->root.type == bfd_link_hash_undefweak) | |
648 | && (h->root.u.undef.abfd == NULL | |
649 | || (h->root.u.undef.abfd->flags & DYNAMIC) == 0)) | |
650 | h->root.u.undef.abfd = abfd; | |
252b5132 | 651 | |
116c20d2 NC |
652 | if (h->root.type == bfd_link_hash_new) |
653 | { | |
654 | h->root.type = bfd_link_hash_undefined; | |
655 | h->root.u.undef.abfd = abfd; | |
656 | /* We do not want to add this to the undefined symbol list. */ | |
657 | } | |
252b5132 | 658 | |
116c20d2 NC |
659 | if (h->smclas == XMC_UA |
660 | || h->root.type == bfd_link_hash_undefined | |
661 | || h->root.type == bfd_link_hash_undefweak) | |
662 | h->smclas = ldsym.l_smclas; | |
252b5132 | 663 | |
116c20d2 NC |
664 | /* Unless this is an XMC_XO symbol, we don't bother to actually |
665 | define it, since we don't have a section to put it in anyhow. | |
666 | Instead, the relocation routines handle the DEF_DYNAMIC flag | |
667 | correctly. */ | |
668 | ||
669 | if (h->smclas == XMC_XO | |
670 | && (h->root.type == bfd_link_hash_undefined | |
671 | || h->root.type == bfd_link_hash_undefweak)) | |
672 | { | |
673 | /* This symbol has an absolute value. */ | |
674 | h->root.type = bfd_link_hash_defined; | |
675 | h->root.u.def.section = bfd_abs_section_ptr; | |
676 | h->root.u.def.value = ldsym.l_value; | |
677 | } | |
678 | ||
679 | /* If this symbol defines a function descriptor, then it | |
680 | implicitly defines the function code as well. */ | |
681 | if (h->smclas == XMC_DS | |
682 | || (h->smclas == XMC_XO && name[0] != '.')) | |
683 | h->flags |= XCOFF_DESCRIPTOR; | |
684 | if ((h->flags & XCOFF_DESCRIPTOR) != 0) | |
685 | { | |
686 | struct xcoff_link_hash_entry *hds; | |
687 | ||
688 | hds = h->descriptor; | |
689 | if (hds == NULL) | |
690 | { | |
691 | char *dsnm; | |
692 | ||
693 | dsnm = bfd_malloc ((bfd_size_type) strlen (name) + 2); | |
694 | if (dsnm == NULL) | |
695 | return FALSE; | |
696 | dsnm[0] = '.'; | |
697 | strcpy (dsnm + 1, name); | |
698 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm, | |
699 | TRUE, TRUE, TRUE); | |
700 | free (dsnm); | |
701 | if (hds == NULL) | |
702 | return FALSE; | |
703 | ||
704 | if (hds->root.type == bfd_link_hash_new) | |
705 | { | |
706 | hds->root.type = bfd_link_hash_undefined; | |
707 | hds->root.u.undef.abfd = abfd; | |
708 | /* We do not want to add this to the undefined | |
709 | symbol list. */ | |
710 | } | |
711 | ||
712 | hds->descriptor = h; | |
713 | h->descriptor = hds; | |
714 | } | |
715 | ||
716 | hds->flags |= XCOFF_DEF_DYNAMIC; | |
717 | if (hds->smclas == XMC_UA) | |
718 | hds->smclas = XMC_PR; | |
719 | ||
720 | /* An absolute symbol appears to actually define code, not a | |
721 | function descriptor. This is how some math functions are | |
722 | implemented on AIX 4.1. */ | |
723 | if (h->smclas == XMC_XO | |
724 | && (hds->root.type == bfd_link_hash_undefined | |
725 | || hds->root.type == bfd_link_hash_undefweak)) | |
726 | { | |
727 | hds->smclas = XMC_XO; | |
728 | hds->root.type = bfd_link_hash_defined; | |
729 | hds->root.u.def.section = bfd_abs_section_ptr; | |
730 | hds->root.u.def.value = ldsym.l_value; | |
731 | } | |
732 | } | |
733 | } | |
734 | ||
735 | if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents) | |
252b5132 | 736 | { |
116c20d2 NC |
737 | free (coff_section_data (abfd, lsec)->contents); |
738 | coff_section_data (abfd, lsec)->contents = NULL; | |
252b5132 RH |
739 | } |
740 | ||
116c20d2 NC |
741 | /* Record this file in the import files. */ |
742 | n = bfd_alloc (abfd, (bfd_size_type) sizeof (struct xcoff_import_file)); | |
743 | if (n == NULL) | |
744 | return FALSE; | |
745 | n->next = NULL; | |
252b5132 | 746 | |
116c20d2 NC |
747 | /* For some reason, the path entry in the import file list for a |
748 | shared object appears to always be empty. The file name is the | |
749 | base name. */ | |
750 | n->path = ""; | |
751 | if (abfd->my_archive == NULL) | |
252b5132 | 752 | { |
116c20d2 NC |
753 | bname = bfd_get_filename (abfd); |
754 | mname = ""; | |
755 | } | |
756 | else | |
757 | { | |
758 | bname = bfd_get_filename (abfd->my_archive); | |
759 | mname = bfd_get_filename (abfd); | |
252b5132 | 760 | } |
116c20d2 NC |
761 | s = strrchr (bname, '/'); |
762 | if (s != NULL) | |
763 | bname = s + 1; | |
764 | n->file = bname; | |
765 | n->member = mname; | |
252b5132 | 766 | |
116c20d2 NC |
767 | /* We start c at 1 because the first import file number is reserved |
768 | for LIBPATH. */ | |
769 | for (pp = &xcoff_hash_table (info)->imports, c = 1; | |
770 | *pp != NULL; | |
771 | pp = &(*pp)->next, ++c) | |
772 | ; | |
773 | *pp = n; | |
252b5132 | 774 | |
116c20d2 | 775 | xcoff_data (abfd)->import_file_id = c; |
252b5132 | 776 | |
116c20d2 | 777 | return TRUE; |
252b5132 RH |
778 | } |
779 | ||
dc810e39 AM |
780 | /* xcoff_link_create_extra_sections |
781 | ||
782 | Takes care of creating the .loader, .gl, .ds, .debug and sections. */ | |
783 | ||
b34976b6 | 784 | static bfd_boolean |
116c20d2 | 785 | xcoff_link_create_extra_sections (bfd * abfd, struct bfd_link_info *info) |
dc810e39 | 786 | { |
b34976b6 | 787 | bfd_boolean return_value = FALSE; |
beb1bf64 | 788 | |
f13a99db | 789 | if (info->output_bfd->xvec == abfd->xvec) |
dc810e39 | 790 | { |
beb1bf64 TR |
791 | /* We need to build a .loader section, so we do it here. This |
792 | won't work if we're producing an XCOFF output file with no | |
793 | XCOFF input files. FIXME. */ | |
794 | ||
dc810e39 AM |
795 | if (xcoff_hash_table (info)->loader_section == NULL) |
796 | { | |
797 | asection *lsec; | |
117ed4f8 | 798 | flagword flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
dc810e39 | 799 | |
117ed4f8 | 800 | lsec = bfd_make_section_anyway_with_flags (abfd, ".loader", flags); |
dc810e39 | 801 | if (lsec == NULL) |
116c20d2 NC |
802 | goto end_return; |
803 | ||
dc810e39 | 804 | xcoff_hash_table (info)->loader_section = lsec; |
beb1bf64 | 805 | } |
beb1bf64 TR |
806 | |
807 | /* Likewise for the linkage section. */ | |
dc810e39 AM |
808 | if (xcoff_hash_table (info)->linkage_section == NULL) |
809 | { | |
810 | asection *lsec; | |
117ed4f8 AM |
811 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
812 | | SEC_IN_MEMORY); | |
beb1bf64 | 813 | |
117ed4f8 | 814 | lsec = bfd_make_section_anyway_with_flags (abfd, ".gl", flags); |
dc810e39 | 815 | if (lsec == NULL) |
116c20d2 | 816 | goto end_return; |
beb1bf64 | 817 | |
dc810e39 | 818 | xcoff_hash_table (info)->linkage_section = lsec; |
dc810e39 AM |
819 | lsec->alignment_power = 2; |
820 | } | |
beb1bf64 TR |
821 | |
822 | /* Likewise for the TOC section. */ | |
dc810e39 AM |
823 | if (xcoff_hash_table (info)->toc_section == NULL) |
824 | { | |
825 | asection *tsec; | |
117ed4f8 AM |
826 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
827 | | SEC_IN_MEMORY); | |
beb1bf64 | 828 | |
117ed4f8 | 829 | tsec = bfd_make_section_anyway_with_flags (abfd, ".tc", flags); |
dc810e39 | 830 | if (tsec == NULL) |
116c20d2 | 831 | goto end_return; |
beb1bf64 | 832 | |
dc810e39 | 833 | xcoff_hash_table (info)->toc_section = tsec; |
dc810e39 | 834 | tsec->alignment_power = 2; |
beb1bf64 TR |
835 | } |
836 | ||
dc810e39 AM |
837 | /* Likewise for the descriptor section. */ |
838 | if (xcoff_hash_table (info)->descriptor_section == NULL) | |
839 | { | |
840 | asection *dsec; | |
117ed4f8 AM |
841 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
842 | | SEC_IN_MEMORY); | |
dc810e39 | 843 | |
117ed4f8 | 844 | dsec = bfd_make_section_anyway_with_flags (abfd, ".ds", flags); |
dc810e39 | 845 | if (dsec == NULL) |
116c20d2 | 846 | goto end_return; |
dc810e39 AM |
847 | |
848 | xcoff_hash_table (info)->descriptor_section = dsec; | |
dc810e39 AM |
849 | dsec->alignment_power = 2; |
850 | } | |
beb1bf64 TR |
851 | |
852 | /* Likewise for the .debug section. */ | |
853 | if (xcoff_hash_table (info)->debug_section == NULL | |
dc810e39 AM |
854 | && info->strip != strip_all) |
855 | { | |
856 | asection *dsec; | |
117ed4f8 | 857 | flagword flags = SEC_HAS_CONTENTS | SEC_IN_MEMORY; |
beb1bf64 | 858 | |
117ed4f8 | 859 | dsec = bfd_make_section_anyway_with_flags (abfd, ".debug", flags); |
dc810e39 | 860 | if (dsec == NULL) |
116c20d2 NC |
861 | goto end_return; |
862 | ||
dc810e39 | 863 | xcoff_hash_table (info)->debug_section = dsec; |
beb1bf64 | 864 | } |
dc810e39 AM |
865 | } |
866 | ||
b34976b6 | 867 | return_value = TRUE; |
beb1bf64 TR |
868 | |
869 | end_return: | |
870 | ||
871 | return return_value; | |
872 | } | |
873 | ||
116c20d2 NC |
874 | /* Returns the index of reloc in RELOCS with the least address greater |
875 | than or equal to ADDRESS. The relocs are sorted by address. */ | |
876 | ||
877 | static bfd_size_type | |
878 | xcoff_find_reloc (struct internal_reloc *relocs, | |
879 | bfd_size_type count, | |
880 | bfd_vma address) | |
881 | { | |
882 | bfd_size_type min, max, this; | |
883 | ||
884 | if (count < 2) | |
885 | { | |
886 | if (count == 1 && relocs[0].r_vaddr < address) | |
887 | return 1; | |
888 | else | |
889 | return 0; | |
890 | } | |
891 | ||
892 | min = 0; | |
893 | max = count; | |
894 | ||
895 | /* Do a binary search over (min,max]. */ | |
896 | while (min + 1 < max) | |
897 | { | |
898 | bfd_vma raddr; | |
899 | ||
900 | this = (max + min) / 2; | |
901 | raddr = relocs[this].r_vaddr; | |
902 | if (raddr > address) | |
903 | max = this; | |
904 | else if (raddr < address) | |
905 | min = this; | |
906 | else | |
907 | { | |
908 | min = this; | |
909 | break; | |
910 | } | |
911 | } | |
912 | ||
913 | if (relocs[min].r_vaddr < address) | |
914 | return min + 1; | |
915 | ||
916 | while (min > 0 | |
917 | && relocs[min - 1].r_vaddr == address) | |
918 | --min; | |
919 | ||
920 | return min; | |
921 | } | |
922 | ||
252b5132 RH |
923 | /* Add all the symbols from an object file to the hash table. |
924 | ||
925 | XCOFF is a weird format. A normal XCOFF .o files will have three | |
926 | COFF sections--.text, .data, and .bss--but each COFF section will | |
927 | contain many csects. These csects are described in the symbol | |
928 | table. From the linker's point of view, each csect must be | |
929 | considered a section in its own right. For example, a TOC entry is | |
930 | handled as a small XMC_TC csect. The linker must be able to merge | |
931 | different TOC entries together, which means that it must be able to | |
932 | extract the XMC_TC csects from the .data section of the input .o | |
933 | file. | |
934 | ||
935 | From the point of view of our linker, this is, of course, a hideous | |
936 | nightmare. We cope by actually creating sections for each csect, | |
937 | and discarding the original sections. We then have to handle the | |
938 | relocation entries carefully, since the only way to tell which | |
939 | csect they belong to is to examine the address. */ | |
940 | ||
b34976b6 | 941 | static bfd_boolean |
116c20d2 | 942 | xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
943 | { |
944 | unsigned int n_tmask; | |
945 | unsigned int n_btshft; | |
b34976b6 | 946 | bfd_boolean default_copy; |
252b5132 RH |
947 | bfd_size_type symcount; |
948 | struct xcoff_link_hash_entry **sym_hash; | |
949 | asection **csect_cache; | |
950 | bfd_size_type linesz; | |
951 | asection *o; | |
952 | asection *last_real; | |
b34976b6 | 953 | bfd_boolean keep_syms; |
252b5132 RH |
954 | asection *csect; |
955 | unsigned int csect_index; | |
956 | asection *first_csect; | |
957 | bfd_size_type symesz; | |
958 | bfd_byte *esym; | |
959 | bfd_byte *esym_end; | |
dc810e39 | 960 | struct reloc_info_struct |
beb1bf64 TR |
961 | { |
962 | struct internal_reloc *relocs; | |
963 | asection **csects; | |
964 | bfd_byte *linenos; | |
965 | } *reloc_info = NULL; | |
dc810e39 | 966 | bfd_size_type amt; |
252b5132 RH |
967 | |
968 | keep_syms = obj_coff_keep_syms (abfd); | |
969 | ||
970 | if ((abfd->flags & DYNAMIC) != 0 | |
dc810e39 AM |
971 | && ! info->static_link) |
972 | { | |
973 | if (! xcoff_link_add_dynamic_symbols (abfd, info)) | |
b34976b6 | 974 | return FALSE; |
252b5132 RH |
975 | } |
976 | ||
116c20d2 | 977 | /* Create the loader, toc, gl, ds and debug sections, if needed. */ |
b34976b6 | 978 | if (! xcoff_link_create_extra_sections (abfd, info)) |
69f284c7 | 979 | goto error_return; |
252b5132 RH |
980 | |
981 | if ((abfd->flags & DYNAMIC) != 0 | |
982 | && ! info->static_link) | |
b34976b6 | 983 | return TRUE; |
252b5132 RH |
984 | |
985 | n_tmask = coff_data (abfd)->local_n_tmask; | |
986 | n_btshft = coff_data (abfd)->local_n_btshft; | |
987 | ||
988 | /* Define macros so that ISFCN, et. al., macros work correctly. */ | |
989 | #define N_TMASK n_tmask | |
990 | #define N_BTSHFT n_btshft | |
991 | ||
992 | if (info->keep_memory) | |
b34976b6 | 993 | default_copy = FALSE; |
252b5132 | 994 | else |
b34976b6 | 995 | default_copy = TRUE; |
252b5132 | 996 | |
dc810e39 | 997 | symcount = obj_raw_syment_count (abfd); |
252b5132 RH |
998 | |
999 | /* We keep a list of the linker hash table entries that correspond | |
1000 | to each external symbol. */ | |
dc810e39 | 1001 | amt = symcount * sizeof (struct xcoff_link_hash_entry *); |
116c20d2 | 1002 | sym_hash = bfd_zalloc (abfd, amt); |
252b5132 RH |
1003 | if (sym_hash == NULL && symcount != 0) |
1004 | goto error_return; | |
1005 | coff_data (abfd)->sym_hashes = (struct coff_link_hash_entry **) sym_hash; | |
252b5132 RH |
1006 | |
1007 | /* Because of the weird stuff we are doing with XCOFF csects, we can | |
1008 | not easily determine which section a symbol is in, so we store | |
1009 | the information in the tdata for the input file. */ | |
dc810e39 | 1010 | amt = symcount * sizeof (asection *); |
116c20d2 | 1011 | csect_cache = bfd_zalloc (abfd, amt); |
252b5132 RH |
1012 | if (csect_cache == NULL && symcount != 0) |
1013 | goto error_return; | |
1014 | xcoff_data (abfd)->csects = csect_cache; | |
252b5132 RH |
1015 | |
1016 | /* While splitting sections into csects, we need to assign the | |
1017 | relocs correctly. The relocs and the csects must both be in | |
1018 | order by VMA within a given section, so we handle this by | |
1019 | scanning along the relocs as we process the csects. We index | |
1020 | into reloc_info using the section target_index. */ | |
dc810e39 AM |
1021 | amt = abfd->section_count + 1; |
1022 | amt *= sizeof (struct reloc_info_struct); | |
116c20d2 | 1023 | reloc_info = bfd_zmalloc (amt); |
252b5132 RH |
1024 | if (reloc_info == NULL) |
1025 | goto error_return; | |
252b5132 RH |
1026 | |
1027 | /* Read in the relocs and line numbers for each section. */ | |
1028 | linesz = bfd_coff_linesz (abfd); | |
1029 | last_real = NULL; | |
dc810e39 AM |
1030 | for (o = abfd->sections; o != NULL; o = o->next) |
1031 | { | |
dc810e39 | 1032 | last_real = o; |
116c20d2 | 1033 | |
dc810e39 AM |
1034 | if ((o->flags & SEC_RELOC) != 0) |
1035 | { | |
dc810e39 | 1036 | reloc_info[o->target_index].relocs = |
116c20d2 | 1037 | xcoff_read_internal_relocs (abfd, o, TRUE, NULL, FALSE, NULL); |
dc810e39 AM |
1038 | amt = o->reloc_count; |
1039 | amt *= sizeof (asection *); | |
116c20d2 | 1040 | reloc_info[o->target_index].csects = bfd_zmalloc (amt); |
dc810e39 AM |
1041 | if (reloc_info[o->target_index].csects == NULL) |
1042 | goto error_return; | |
dc810e39 | 1043 | } |
beb1bf64 | 1044 | |
dc810e39 AM |
1045 | if ((info->strip == strip_none || info->strip == strip_some) |
1046 | && o->lineno_count > 0) | |
1047 | { | |
dc810e39 AM |
1048 | bfd_byte *linenos; |
1049 | ||
1050 | amt = linesz * o->lineno_count; | |
116c20d2 | 1051 | linenos = bfd_malloc (amt); |
dc810e39 AM |
1052 | if (linenos == NULL) |
1053 | goto error_return; | |
1054 | reloc_info[o->target_index].linenos = linenos; | |
1055 | if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0 | |
1056 | || bfd_bread (linenos, amt, abfd) != amt) | |
1057 | goto error_return; | |
dc810e39 | 1058 | } |
252b5132 | 1059 | } |
beb1bf64 | 1060 | |
252b5132 | 1061 | /* Don't let the linker relocation routines discard the symbols. */ |
b34976b6 | 1062 | obj_coff_keep_syms (abfd) = TRUE; |
252b5132 RH |
1063 | |
1064 | csect = NULL; | |
1065 | csect_index = 0; | |
1066 | first_csect = NULL; | |
1067 | ||
1068 | symesz = bfd_coff_symesz (abfd); | |
1069 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
1070 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
1071 | esym_end = esym + symcount * symesz; | |
252b5132 | 1072 | |
dc810e39 AM |
1073 | while (esym < esym_end) |
1074 | { | |
1075 | struct internal_syment sym; | |
1076 | union internal_auxent aux; | |
1077 | const char *name; | |
1078 | char buf[SYMNMLEN + 1]; | |
1079 | int smtyp; | |
1080 | flagword flags; | |
1081 | asection *section; | |
1082 | bfd_vma value; | |
1083 | struct xcoff_link_hash_entry *set_toc; | |
252b5132 | 1084 | |
116c20d2 | 1085 | bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym); |
dc810e39 AM |
1086 | |
1087 | /* In this pass we are only interested in symbols with csect | |
1088 | information. */ | |
1089 | if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT) | |
1090 | { | |
dc810e39 AM |
1091 | /* Set csect_cache, |
1092 | Normally csect is a .pr, .rw etc. created in the loop | |
1093 | If C_FILE or first time, handle special | |
252b5132 | 1094 | |
4cc02a02 RS |
1095 | Advance esym, sym_hash, csect_hash ptrs. */ |
1096 | if (sym.n_sclass == C_FILE) | |
1097 | csect = NULL; | |
dc810e39 AM |
1098 | if (csect != NULL) |
1099 | *csect_cache = csect; | |
1100 | else if (first_csect == NULL || sym.n_sclass == C_FILE) | |
1101 | *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
1102 | else | |
1103 | *csect_cache = NULL; | |
1104 | esym += (sym.n_numaux + 1) * symesz; | |
1105 | sym_hash += sym.n_numaux + 1; | |
1106 | csect_cache += sym.n_numaux + 1; | |
1107 | ||
1108 | continue; | |
1109 | } | |
1110 | ||
1111 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
1112 | ||
1113 | if (name == NULL) | |
1114 | goto error_return; | |
252b5132 RH |
1115 | |
1116 | /* If this symbol has line number information attached to it, | |
b34976b6 AM |
1117 | and we're not stripping it, count the number of entries and |
1118 | add them to the count for this csect. In the final link pass | |
1119 | we are going to attach line number information by symbol, | |
1120 | rather than by section, in order to more easily handle | |
1121 | garbage collection. */ | |
dc810e39 AM |
1122 | if ((info->strip == strip_none || info->strip == strip_some) |
1123 | && sym.n_numaux > 1 | |
1124 | && csect != NULL | |
1125 | && ISFCN (sym.n_type)) | |
1126 | { | |
dc810e39 | 1127 | union internal_auxent auxlin; |
252b5132 | 1128 | |
116c20d2 | 1129 | bfd_coff_swap_aux_in (abfd, (void *) (esym + symesz), |
dc810e39 | 1130 | sym.n_type, sym.n_sclass, |
116c20d2 | 1131 | 0, sym.n_numaux, (void *) &auxlin); |
dc810e39 AM |
1132 | |
1133 | if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) | |
1134 | { | |
1135 | asection *enclosing; | |
1136 | bfd_signed_vma linoff; | |
1137 | ||
1138 | enclosing = xcoff_section_data (abfd, csect)->enclosing; | |
1139 | if (enclosing == NULL) | |
1140 | { | |
1141 | (*_bfd_error_handler) | |
d003868e AM |
1142 | (_("%B: `%s' has line numbers but no enclosing section"), |
1143 | abfd, name); | |
dc810e39 AM |
1144 | bfd_set_error (bfd_error_bad_value); |
1145 | goto error_return; | |
1146 | } | |
1147 | linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr | |
1148 | - enclosing->line_filepos); | |
116c20d2 | 1149 | /* Explicit cast to bfd_signed_vma for compiler. */ |
dc810e39 AM |
1150 | if (linoff < (bfd_signed_vma) (enclosing->lineno_count * linesz)) |
1151 | { | |
1152 | struct internal_lineno lin; | |
1153 | bfd_byte *linpstart; | |
1154 | ||
1155 | linpstart = (reloc_info[enclosing->target_index].linenos | |
1156 | + linoff); | |
116c20d2 | 1157 | bfd_coff_swap_lineno_in (abfd, (void *) linpstart, (void *) &lin); |
dc810e39 AM |
1158 | if (lin.l_lnno == 0 |
1159 | && ((bfd_size_type) lin.l_addr.l_symndx | |
1160 | == ((esym | |
1161 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1162 | / symesz))) | |
1163 | { | |
1164 | bfd_byte *linpend, *linp; | |
1165 | ||
1166 | linpend = (reloc_info[enclosing->target_index].linenos | |
1167 | + enclosing->lineno_count * linesz); | |
1168 | for (linp = linpstart + linesz; | |
1169 | linp < linpend; | |
1170 | linp += linesz) | |
1171 | { | |
116c20d2 NC |
1172 | bfd_coff_swap_lineno_in (abfd, (void *) linp, |
1173 | (void *) &lin); | |
dc810e39 AM |
1174 | if (lin.l_lnno == 0) |
1175 | break; | |
1176 | } | |
1177 | csect->lineno_count += (linp - linpstart) / linesz; | |
1178 | /* The setting of line_filepos will only be | |
1179 | useful if all the line number entries for a | |
1180 | csect are contiguous; this only matters for | |
1181 | error reporting. */ | |
1182 | if (csect->line_filepos == 0) | |
1183 | csect->line_filepos = | |
1184 | auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
1185 | } | |
1186 | } | |
beb1bf64 | 1187 | } |
beb1bf64 | 1188 | } |
252b5132 | 1189 | |
dc810e39 | 1190 | /* Pick up the csect auxiliary information. */ |
dc810e39 AM |
1191 | if (sym.n_numaux == 0) |
1192 | { | |
1193 | (*_bfd_error_handler) | |
d003868e AM |
1194 | (_("%B: class %d symbol `%s' has no aux entries"), |
1195 | abfd, sym.n_sclass, name); | |
dc810e39 AM |
1196 | bfd_set_error (bfd_error_bad_value); |
1197 | goto error_return; | |
1198 | } | |
beb1bf64 | 1199 | |
dc810e39 | 1200 | bfd_coff_swap_aux_in (abfd, |
116c20d2 | 1201 | (void *) (esym + symesz * sym.n_numaux), |
dc810e39 | 1202 | sym.n_type, sym.n_sclass, |
252b5132 | 1203 | sym.n_numaux - 1, sym.n_numaux, |
116c20d2 | 1204 | (void *) &aux); |
252b5132 RH |
1205 | |
1206 | smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); | |
1207 | ||
1208 | flags = BSF_GLOBAL; | |
1209 | section = NULL; | |
1210 | value = 0; | |
1211 | set_toc = NULL; | |
1212 | ||
1213 | switch (smtyp) | |
1214 | { | |
1215 | default: | |
1216 | (*_bfd_error_handler) | |
d003868e AM |
1217 | (_("%B: symbol `%s' has unrecognized csect type %d"), |
1218 | abfd, name, smtyp); | |
252b5132 RH |
1219 | bfd_set_error (bfd_error_bad_value); |
1220 | goto error_return; | |
1221 | ||
1222 | case XTY_ER: | |
1223 | /* This is an external reference. */ | |
1224 | if (sym.n_sclass == C_HIDEXT | |
1225 | || sym.n_scnum != N_UNDEF | |
1226 | || aux.x_csect.x_scnlen.l != 0) | |
1227 | { | |
1228 | (*_bfd_error_handler) | |
d003868e AM |
1229 | (_("%B: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"), |
1230 | abfd, name, sym.n_sclass, sym.n_scnum, | |
252b5132 RH |
1231 | aux.x_csect.x_scnlen.l); |
1232 | bfd_set_error (bfd_error_bad_value); | |
1233 | goto error_return; | |
1234 | } | |
1235 | ||
1236 | /* An XMC_XO external reference is actually a reference to | |
b34976b6 | 1237 | an absolute location. */ |
252b5132 RH |
1238 | if (aux.x_csect.x_smclas != XMC_XO) |
1239 | section = bfd_und_section_ptr; | |
1240 | else | |
1241 | { | |
1242 | section = bfd_abs_section_ptr; | |
1243 | value = sym.n_value; | |
1244 | } | |
1245 | break; | |
1246 | ||
1247 | case XTY_SD: | |
252b5132 | 1248 | csect = NULL; |
dc810e39 | 1249 | csect_index = -(unsigned) 1; |
252b5132 RH |
1250 | |
1251 | /* When we see a TOC anchor, we record the TOC value. */ | |
1252 | if (aux.x_csect.x_smclas == XMC_TC0) | |
1253 | { | |
1254 | if (sym.n_sclass != C_HIDEXT | |
1255 | || aux.x_csect.x_scnlen.l != 0) | |
1256 | { | |
1257 | (*_bfd_error_handler) | |
d003868e AM |
1258 | (_("%B: XMC_TC0 symbol `%s' is class %d scnlen %d"), |
1259 | abfd, name, sym.n_sclass, aux.x_csect.x_scnlen.l); | |
252b5132 RH |
1260 | bfd_set_error (bfd_error_bad_value); |
1261 | goto error_return; | |
1262 | } | |
1263 | xcoff_data (abfd)->toc = sym.n_value; | |
1264 | } | |
1265 | ||
dc810e39 AM |
1266 | /* We must merge TOC entries for the same symbol. We can |
1267 | merge two TOC entries if they are both C_HIDEXT, they | |
1268 | both have the same name, they are both 4 or 8 bytes long, and | |
1269 | they both have a relocation table entry for an external | |
1270 | symbol with the same name. Unfortunately, this means | |
1271 | that we must look through the relocations. Ick. | |
1272 | ||
1273 | Logic for 32 bit vs 64 bit. | |
1274 | 32 bit has a csect length of 4 for TOC | |
1275 | 64 bit has a csect length of 8 for TOC | |
1276 | ||
1277 | The conditions to get past the if-check are not that bad. | |
1278 | They are what is used to create the TOC csects in the first | |
1279 | place. */ | |
1280 | if (aux.x_csect.x_smclas == XMC_TC | |
1281 | && sym.n_sclass == C_HIDEXT | |
f13a99db | 1282 | && info->output_bfd->xvec == abfd->xvec |
dc810e39 AM |
1283 | && ((bfd_xcoff_is_xcoff32 (abfd) |
1284 | && aux.x_csect.x_scnlen.l == 4) | |
1285 | || (bfd_xcoff_is_xcoff64 (abfd) | |
1286 | && aux.x_csect.x_scnlen.l == 8))) | |
1287 | { | |
1288 | asection *enclosing; | |
1289 | struct internal_reloc *relocs; | |
1290 | bfd_size_type relindx; | |
1291 | struct internal_reloc *rel; | |
252b5132 | 1292 | |
dc810e39 AM |
1293 | enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); |
1294 | if (enclosing == NULL) | |
1295 | goto error_return; | |
252b5132 | 1296 | |
dc810e39 AM |
1297 | relocs = reloc_info[enclosing->target_index].relocs; |
1298 | amt = enclosing->reloc_count; | |
1299 | relindx = xcoff_find_reloc (relocs, amt, sym.n_value); | |
1300 | rel = relocs + relindx; | |
252b5132 | 1301 | |
dc810e39 AM |
1302 | /* 32 bit R_POS r_size is 31 |
1303 | 64 bit R_POS r_size is 63 */ | |
1304 | if (relindx < enclosing->reloc_count | |
1305 | && rel->r_vaddr == (bfd_vma) sym.n_value | |
1306 | && rel->r_type == R_POS | |
1307 | && ((bfd_xcoff_is_xcoff32 (abfd) | |
1308 | && rel->r_size == 31) | |
1309 | || (bfd_xcoff_is_xcoff64 (abfd) | |
1310 | && rel->r_size == 63))) | |
1311 | { | |
1312 | bfd_byte *erelsym; | |
1313 | ||
1314 | struct internal_syment relsym; | |
1315 | ||
1316 | erelsym = ((bfd_byte *) obj_coff_external_syms (abfd) | |
1317 | + rel->r_symndx * symesz); | |
116c20d2 | 1318 | bfd_coff_swap_sym_in (abfd, (void *) erelsym, (void *) &relsym); |
dc810e39 AM |
1319 | if (relsym.n_sclass == C_EXT) |
1320 | { | |
1321 | const char *relname; | |
1322 | char relbuf[SYMNMLEN + 1]; | |
b34976b6 | 1323 | bfd_boolean copy; |
dc810e39 AM |
1324 | struct xcoff_link_hash_entry *h; |
1325 | ||
1326 | /* At this point we know that the TOC entry is | |
1327 | for an externally visible symbol. */ | |
dc810e39 AM |
1328 | relname = _bfd_coff_internal_syment_name (abfd, &relsym, |
1329 | relbuf); | |
1330 | if (relname == NULL) | |
1331 | goto error_return; | |
1332 | ||
1333 | /* We only merge TOC entries if the TC name is | |
1334 | the same as the symbol name. This handles | |
1335 | the normal case, but not common cases like | |
1336 | SYM.P4 which gcc generates to store SYM + 4 | |
1337 | in the TOC. FIXME. */ | |
dc810e39 AM |
1338 | if (strcmp (name, relname) == 0) |
1339 | { | |
1340 | copy = (! info->keep_memory | |
1341 | || relsym._n._n_n._n_zeroes != 0 | |
1342 | || relsym._n._n_n._n_offset == 0); | |
1343 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
b34976b6 AM |
1344 | relname, TRUE, copy, |
1345 | FALSE); | |
dc810e39 AM |
1346 | if (h == NULL) |
1347 | goto error_return; | |
1348 | ||
1349 | /* At this point h->root.type could be | |
1350 | bfd_link_hash_new. That should be OK, | |
1351 | since we know for sure that we will come | |
1352 | across this symbol as we step through the | |
1353 | file. */ | |
1354 | ||
1355 | /* We store h in *sym_hash for the | |
1356 | convenience of the relocate_section | |
1357 | function. */ | |
1358 | *sym_hash = h; | |
1359 | ||
1360 | if (h->toc_section != NULL) | |
1361 | { | |
1362 | asection **rel_csects; | |
1363 | ||
1364 | /* We already have a TOC entry for this | |
1365 | symbol, so we can just ignore this | |
1366 | one. */ | |
1367 | rel_csects = | |
1368 | reloc_info[enclosing->target_index].csects; | |
1369 | rel_csects[relindx] = bfd_und_section_ptr; | |
1370 | break; | |
1371 | } | |
1372 | ||
1373 | /* We are about to create a TOC entry for | |
1374 | this symbol. */ | |
1375 | set_toc = h; | |
116c20d2 NC |
1376 | } |
1377 | } | |
1378 | } | |
1379 | } | |
252b5132 | 1380 | |
252b5132 | 1381 | { |
252b5132 RH |
1382 | asection *enclosing; |
1383 | ||
beb1bf64 TR |
1384 | /* We need to create a new section. We get the name from |
1385 | the csect storage mapping class, so that the linker can | |
1386 | accumulate similar csects together. */ | |
252b5132 | 1387 | |
beb1bf64 | 1388 | csect = bfd_xcoff_create_csect_from_smclas(abfd, &aux, name); |
dc810e39 | 1389 | if (NULL == csect) |
116c20d2 | 1390 | goto error_return; |
beb1bf64 | 1391 | |
dc810e39 AM |
1392 | /* The enclosing section is the main section : .data, .text |
1393 | or .bss that the csect is coming from. */ | |
252b5132 RH |
1394 | enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); |
1395 | if (enclosing == NULL) | |
1396 | goto error_return; | |
beb1bf64 | 1397 | |
dc810e39 AM |
1398 | if (! bfd_is_abs_section (enclosing) |
1399 | && ((bfd_vma) sym.n_value < enclosing->vma | |
1400 | || ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l | |
eea6121a | 1401 | > enclosing->vma + enclosing->size))) |
dc810e39 AM |
1402 | { |
1403 | (*_bfd_error_handler) | |
d003868e AM |
1404 | (_("%B: csect `%s' not in enclosing section"), |
1405 | abfd, name); | |
dc810e39 AM |
1406 | bfd_set_error (bfd_error_bad_value); |
1407 | goto error_return; | |
1408 | } | |
252b5132 RH |
1409 | csect->vma = sym.n_value; |
1410 | csect->filepos = (enclosing->filepos | |
1411 | + sym.n_value | |
1412 | - enclosing->vma); | |
eea6121a | 1413 | csect->size = aux.x_csect.x_scnlen.l; |
252b5132 RH |
1414 | csect->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; |
1415 | csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); | |
1416 | ||
1417 | /* Record the enclosing section in the tdata for this new | |
1418 | section. */ | |
dc810e39 | 1419 | amt = sizeof (struct coff_section_tdata); |
116c20d2 | 1420 | csect->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
1421 | if (csect->used_by_bfd == NULL) |
1422 | goto error_return; | |
dc810e39 AM |
1423 | amt = sizeof (struct xcoff_section_tdata); |
1424 | coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt); | |
252b5132 RH |
1425 | if (coff_section_data (abfd, csect)->tdata == NULL) |
1426 | goto error_return; | |
1427 | xcoff_section_data (abfd, csect)->enclosing = enclosing; | |
1428 | xcoff_section_data (abfd, csect)->lineno_count = | |
1429 | enclosing->lineno_count; | |
1430 | ||
dc810e39 AM |
1431 | if (enclosing->owner == abfd) |
1432 | { | |
1433 | struct internal_reloc *relocs; | |
1434 | bfd_size_type relindx; | |
1435 | struct internal_reloc *rel; | |
1436 | asection **rel_csect; | |
1437 | ||
1438 | relocs = reloc_info[enclosing->target_index].relocs; | |
1439 | amt = enclosing->reloc_count; | |
1440 | relindx = xcoff_find_reloc (relocs, amt, csect->vma); | |
1441 | ||
1442 | rel = relocs + relindx; | |
1443 | rel_csect = (reloc_info[enclosing->target_index].csects | |
1444 | + relindx); | |
1445 | ||
1446 | csect->rel_filepos = (enclosing->rel_filepos | |
1447 | + relindx * bfd_coff_relsz (abfd)); | |
1448 | while (relindx < enclosing->reloc_count | |
1449 | && *rel_csect == NULL | |
eea6121a | 1450 | && rel->r_vaddr < csect->vma + csect->size) |
dc810e39 | 1451 | { |
beb1bf64 | 1452 | |
dc810e39 AM |
1453 | *rel_csect = csect; |
1454 | csect->flags |= SEC_RELOC; | |
1455 | ++csect->reloc_count; | |
1456 | ++relindx; | |
1457 | ++rel; | |
1458 | ++rel_csect; | |
1459 | } | |
252b5132 RH |
1460 | } |
1461 | ||
1462 | /* There are a number of other fields and section flags | |
1463 | which we do not bother to set. */ | |
1464 | ||
1465 | csect_index = ((esym | |
1466 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1467 | / symesz); | |
1468 | ||
1469 | xcoff_section_data (abfd, csect)->first_symndx = csect_index; | |
1470 | ||
1471 | if (first_csect == NULL) | |
1472 | first_csect = csect; | |
1473 | ||
1474 | /* If this symbol is C_EXT, we treat it as starting at the | |
1475 | beginning of the newly created section. */ | |
1476 | if (sym.n_sclass == C_EXT) | |
1477 | { | |
1478 | section = csect; | |
1479 | value = 0; | |
1480 | } | |
1481 | ||
1482 | /* If this is a TOC section for a symbol, record it. */ | |
1483 | if (set_toc != NULL) | |
1484 | set_toc->toc_section = csect; | |
1485 | } | |
1486 | break; | |
1487 | ||
1488 | case XTY_LD: | |
1489 | /* This is a label definition. The x_scnlen field is the | |
dc810e39 | 1490 | symbol index of the csect. Usually the XTY_LD symbol will |
8df8c619 TR |
1491 | follow its appropriate XTY_SD symbol. The .set pseudo op can |
1492 | cause the XTY_LD to not follow the XTY_SD symbol. */ | |
252b5132 | 1493 | { |
b34976b6 | 1494 | bfd_boolean bad; |
252b5132 | 1495 | |
b34976b6 | 1496 | bad = FALSE; |
252b5132 RH |
1497 | if (aux.x_csect.x_scnlen.l < 0 |
1498 | || (aux.x_csect.x_scnlen.l | |
1499 | >= esym - (bfd_byte *) obj_coff_external_syms (abfd))) | |
b34976b6 | 1500 | bad = TRUE; |
252b5132 RH |
1501 | if (! bad) |
1502 | { | |
1503 | section = xcoff_data (abfd)->csects[aux.x_csect.x_scnlen.l]; | |
1504 | if (section == NULL | |
1505 | || (section->flags & SEC_HAS_CONTENTS) == 0) | |
b34976b6 | 1506 | bad = TRUE; |
252b5132 RH |
1507 | } |
1508 | if (bad) | |
1509 | { | |
1510 | (*_bfd_error_handler) | |
d003868e AM |
1511 | (_("%B: misplaced XTY_LD `%s'"), |
1512 | abfd, name); | |
252b5132 RH |
1513 | bfd_set_error (bfd_error_bad_value); |
1514 | goto error_return; | |
1515 | } | |
8df8c619 | 1516 | csect = section; |
252b5132 RH |
1517 | value = sym.n_value - csect->vma; |
1518 | } | |
1519 | break; | |
1520 | ||
1521 | case XTY_CM: | |
1522 | /* This is an unitialized csect. We could base the name on | |
b34976b6 AM |
1523 | the storage mapping class, but we don't bother except for |
1524 | an XMC_TD symbol. If this csect is externally visible, | |
1525 | it is a common symbol. We put XMC_TD symbols in sections | |
1526 | named .tocbss, and rely on the linker script to put that | |
1527 | in the TOC area. */ | |
252b5132 | 1528 | |
dc810e39 AM |
1529 | if (aux.x_csect.x_smclas == XMC_TD) |
1530 | { | |
1531 | /* The linker script puts the .td section in the data | |
1532 | section after the .tc section. */ | |
117ed4f8 AM |
1533 | csect = bfd_make_section_anyway_with_flags (abfd, ".td", |
1534 | SEC_ALLOC); | |
dc810e39 AM |
1535 | } |
1536 | else | |
117ed4f8 AM |
1537 | csect = bfd_make_section_anyway_with_flags (abfd, ".bss", |
1538 | SEC_ALLOC); | |
116c20d2 | 1539 | |
252b5132 RH |
1540 | if (csect == NULL) |
1541 | goto error_return; | |
1542 | csect->vma = sym.n_value; | |
eea6121a | 1543 | csect->size = aux.x_csect.x_scnlen.l; |
252b5132 RH |
1544 | csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); |
1545 | /* There are a number of other fields and section flags | |
1546 | which we do not bother to set. */ | |
1547 | ||
1548 | csect_index = ((esym | |
1549 | - (bfd_byte *) obj_coff_external_syms (abfd)) | |
1550 | / symesz); | |
1551 | ||
dc810e39 | 1552 | amt = sizeof (struct coff_section_tdata); |
116c20d2 | 1553 | csect->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
1554 | if (csect->used_by_bfd == NULL) |
1555 | goto error_return; | |
dc810e39 AM |
1556 | amt = sizeof (struct xcoff_section_tdata); |
1557 | coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt); | |
252b5132 RH |
1558 | if (coff_section_data (abfd, csect)->tdata == NULL) |
1559 | goto error_return; | |
1560 | xcoff_section_data (abfd, csect)->first_symndx = csect_index; | |
1561 | ||
1562 | if (first_csect == NULL) | |
1563 | first_csect = csect; | |
1564 | ||
1565 | if (sym.n_sclass == C_EXT) | |
1566 | { | |
1567 | csect->flags |= SEC_IS_COMMON; | |
eea6121a | 1568 | csect->size = 0; |
252b5132 RH |
1569 | section = csect; |
1570 | value = aux.x_csect.x_scnlen.l; | |
1571 | } | |
1572 | ||
1573 | break; | |
1574 | } | |
1575 | ||
1576 | /* Check for magic symbol names. */ | |
dc810e39 AM |
1577 | if ((smtyp == XTY_SD || smtyp == XTY_CM) |
1578 | && aux.x_csect.x_smclas != XMC_TC | |
1579 | && aux.x_csect.x_smclas != XMC_TD) | |
1580 | { | |
dc810e39 AM |
1581 | int i = -1; |
1582 | ||
1583 | if (name[0] == '_') | |
1584 | { | |
1585 | if (strcmp (name, "_text") == 0) | |
1586 | i = XCOFF_SPECIAL_SECTION_TEXT; | |
1587 | else if (strcmp (name, "_etext") == 0) | |
1588 | i = XCOFF_SPECIAL_SECTION_ETEXT; | |
1589 | else if (strcmp (name, "_data") == 0) | |
1590 | i = XCOFF_SPECIAL_SECTION_DATA; | |
1591 | else if (strcmp (name, "_edata") == 0) | |
1592 | i = XCOFF_SPECIAL_SECTION_EDATA; | |
1593 | else if (strcmp (name, "_end") == 0) | |
1594 | i = XCOFF_SPECIAL_SECTION_END; | |
1595 | } | |
1596 | else if (name[0] == 'e' && strcmp (name, "end") == 0) | |
116c20d2 | 1597 | i = XCOFF_SPECIAL_SECTION_END2; |
dc810e39 AM |
1598 | |
1599 | if (i != -1) | |
116c20d2 | 1600 | xcoff_hash_table (info)->special_sections[i] = csect; |
dc810e39 | 1601 | } |
252b5132 RH |
1602 | |
1603 | /* Now we have enough information to add the symbol to the | |
b34976b6 | 1604 | linker hash table. */ |
252b5132 RH |
1605 | |
1606 | if (sym.n_sclass == C_EXT) | |
1607 | { | |
b34976b6 | 1608 | bfd_boolean copy; |
252b5132 RH |
1609 | |
1610 | BFD_ASSERT (section != NULL); | |
1611 | ||
1612 | /* We must copy the name into memory if we got it from the | |
b34976b6 | 1613 | syment itself, rather than the string table. */ |
252b5132 RH |
1614 | copy = default_copy; |
1615 | if (sym._n._n_n._n_zeroes != 0 | |
1616 | || sym._n._n_n._n_offset == 0) | |
b34976b6 | 1617 | copy = TRUE; |
252b5132 RH |
1618 | |
1619 | /* The AIX linker appears to only detect multiple symbol | |
1620 | definitions when there is a reference to the symbol. If | |
1621 | a symbol is defined multiple times, and the only | |
1622 | references are from the same object file, the AIX linker | |
1623 | appears to permit it. It does not merge the different | |
1624 | definitions, but handles them independently. On the | |
1625 | other hand, if there is a reference, the linker reports | |
1626 | an error. | |
1627 | ||
1628 | This matters because the AIX <net/net_globals.h> header | |
1629 | file actually defines an initialized array, so we have to | |
1630 | actually permit that to work. | |
1631 | ||
1632 | Just to make matters even more confusing, the AIX linker | |
1633 | appears to permit multiple symbol definitions whenever | |
1634 | the second definition is in an archive rather than an | |
1635 | object file. This may be a consequence of the manner in | |
1636 | which it handles archives: I think it may load the entire | |
1637 | archive in as separate csects, and then let garbage | |
1638 | collection discard symbols. | |
1639 | ||
1640 | We also have to handle the case of statically linking a | |
1641 | shared object, which will cause symbol redefinitions, | |
1642 | although this is an easier case to detect. */ | |
1643 | ||
f13a99db | 1644 | if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
1645 | { |
1646 | if (! bfd_is_und_section (section)) | |
116c20d2 NC |
1647 | *sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info), |
1648 | name, TRUE, copy, FALSE); | |
252b5132 | 1649 | else |
116c20d2 NC |
1650 | /* Make a copy of the symbol name to prevent problems with |
1651 | merging symbols. */ | |
1652 | *sym_hash = ((struct xcoff_link_hash_entry *) | |
1653 | bfd_wrapped_link_hash_lookup (abfd, info, name, | |
1654 | TRUE, TRUE, FALSE)); | |
1655 | ||
252b5132 RH |
1656 | if (*sym_hash == NULL) |
1657 | goto error_return; | |
1658 | if (((*sym_hash)->root.type == bfd_link_hash_defined | |
1659 | || (*sym_hash)->root.type == bfd_link_hash_defweak) | |
1660 | && ! bfd_is_und_section (section) | |
1661 | && ! bfd_is_com_section (section)) | |
1662 | { | |
1663 | /* This is a second definition of a defined symbol. */ | |
1664 | if ((abfd->flags & DYNAMIC) != 0 | |
1665 | && ((*sym_hash)->smclas != XMC_GL | |
1666 | || aux.x_csect.x_smclas == XMC_GL | |
1667 | || ((*sym_hash)->root.u.def.section->owner->flags | |
1668 | & DYNAMIC) == 0)) | |
1669 | { | |
1670 | /* The new symbol is from a shared library, and | |
b34976b6 AM |
1671 | either the existing symbol is not global |
1672 | linkage code or this symbol is global linkage | |
1673 | code. If the existing symbol is global | |
1674 | linkage code and the new symbol is not, then | |
1675 | we want to use the new symbol. */ | |
252b5132 RH |
1676 | section = bfd_und_section_ptr; |
1677 | value = 0; | |
1678 | } | |
1679 | else if (((*sym_hash)->root.u.def.section->owner->flags | |
1680 | & DYNAMIC) != 0) | |
1681 | { | |
1682 | /* The existing symbol is from a shared library. | |
b34976b6 | 1683 | Replace it. */ |
252b5132 RH |
1684 | (*sym_hash)->root.type = bfd_link_hash_undefined; |
1685 | (*sym_hash)->root.u.undef.abfd = | |
1686 | (*sym_hash)->root.u.def.section->owner; | |
1687 | } | |
1688 | else if (abfd->my_archive != NULL) | |
1689 | { | |
1690 | /* This is a redefinition in an object contained | |
b34976b6 AM |
1691 | in an archive. Just ignore it. See the |
1692 | comment above. */ | |
252b5132 RH |
1693 | section = bfd_und_section_ptr; |
1694 | value = 0; | |
1695 | } | |
f6e332e6 | 1696 | else if ((*sym_hash)->root.u.undef.next != NULL |
252b5132 RH |
1697 | || info->hash->undefs_tail == &(*sym_hash)->root) |
1698 | { | |
1699 | /* This symbol has been referenced. In this | |
b34976b6 AM |
1700 | case, we just continue and permit the |
1701 | multiple definition error. See the comment | |
1702 | above about the behaviour of the AIX linker. */ | |
252b5132 RH |
1703 | } |
1704 | else if ((*sym_hash)->smclas == aux.x_csect.x_smclas) | |
1705 | { | |
1706 | /* The symbols are both csects of the same | |
b34976b6 AM |
1707 | class. There is at least a chance that this |
1708 | is a semi-legitimate redefinition. */ | |
252b5132 RH |
1709 | section = bfd_und_section_ptr; |
1710 | value = 0; | |
1711 | (*sym_hash)->flags |= XCOFF_MULTIPLY_DEFINED; | |
1712 | } | |
1713 | } | |
1714 | else if (((*sym_hash)->flags & XCOFF_MULTIPLY_DEFINED) != 0 | |
1715 | && ((*sym_hash)->root.type == bfd_link_hash_defined | |
1716 | || (*sym_hash)->root.type == bfd_link_hash_defweak) | |
1717 | && (bfd_is_und_section (section) | |
1718 | || bfd_is_com_section (section))) | |
1719 | { | |
1720 | /* This is a reference to a multiply defined symbol. | |
1721 | Report the error now. See the comment above | |
1722 | about the behaviour of the AIX linker. We could | |
1723 | also do this with warning symbols, but I'm not | |
1724 | sure the XCOFF linker is wholly prepared to | |
1725 | handle them, and that would only be a warning, | |
1726 | not an error. */ | |
1727 | if (! ((*info->callbacks->multiple_definition) | |
1728 | (info, (*sym_hash)->root.root.string, | |
116c20d2 | 1729 | NULL, NULL, (bfd_vma) 0, |
252b5132 RH |
1730 | (*sym_hash)->root.u.def.section->owner, |
1731 | (*sym_hash)->root.u.def.section, | |
1732 | (*sym_hash)->root.u.def.value))) | |
1733 | goto error_return; | |
1734 | /* Try not to give this error too many times. */ | |
1735 | (*sym_hash)->flags &= ~XCOFF_MULTIPLY_DEFINED; | |
1736 | } | |
1737 | } | |
1738 | ||
1739 | /* _bfd_generic_link_add_one_symbol may call the linker to | |
1740 | generate an error message, and the linker may try to read | |
1741 | the symbol table to give a good error. Right now, the | |
1742 | line numbers are in an inconsistent state, since they are | |
1743 | counted both in the real sections and in the new csects. | |
1744 | We need to leave the count in the real sections so that | |
1745 | the linker can report the line number of the error | |
1746 | correctly, so temporarily clobber the link to the csects | |
1747 | so that the linker will not try to read the line numbers | |
1748 | a second time from the csects. */ | |
1749 | BFD_ASSERT (last_real->next == first_csect); | |
1750 | last_real->next = NULL; | |
1751 | if (! (_bfd_generic_link_add_one_symbol | |
1752 | (info, abfd, name, flags, section, value, | |
116c20d2 | 1753 | NULL, copy, TRUE, |
252b5132 RH |
1754 | (struct bfd_link_hash_entry **) sym_hash))) |
1755 | goto error_return; | |
1756 | last_real->next = first_csect; | |
1757 | ||
1758 | if (smtyp == XTY_CM) | |
1759 | { | |
1760 | if ((*sym_hash)->root.type != bfd_link_hash_common | |
1761 | || (*sym_hash)->root.u.c.p->section != csect) | |
116c20d2 NC |
1762 | /* We don't need the common csect we just created. */ |
1763 | csect->size = 0; | |
252b5132 | 1764 | else |
116c20d2 NC |
1765 | (*sym_hash)->root.u.c.p->alignment_power |
1766 | = csect->alignment_power; | |
252b5132 RH |
1767 | } |
1768 | ||
f13a99db | 1769 | if (info->output_bfd->xvec == abfd->xvec) |
252b5132 RH |
1770 | { |
1771 | int flag; | |
1772 | ||
1773 | if (smtyp == XTY_ER || smtyp == XTY_CM) | |
1774 | flag = XCOFF_REF_REGULAR; | |
1775 | else | |
1776 | flag = XCOFF_DEF_REGULAR; | |
1777 | (*sym_hash)->flags |= flag; | |
1778 | ||
1779 | if ((*sym_hash)->smclas == XMC_UA | |
1780 | || flag == XCOFF_DEF_REGULAR) | |
1781 | (*sym_hash)->smclas = aux.x_csect.x_smclas; | |
1782 | } | |
1783 | } | |
1784 | ||
4cc02a02 RS |
1785 | if (smtyp == XTY_ER) |
1786 | *csect_cache = section; | |
1787 | else | |
1788 | { | |
1789 | *csect_cache = csect; | |
1790 | if (csect != NULL) | |
1791 | xcoff_section_data (abfd, csect)->last_symndx | |
1792 | = (esym - (bfd_byte *) obj_coff_external_syms (abfd)) / symesz; | |
1793 | } | |
252b5132 RH |
1794 | |
1795 | esym += (sym.n_numaux + 1) * symesz; | |
1796 | sym_hash += sym.n_numaux + 1; | |
1797 | csect_cache += sym.n_numaux + 1; | |
1798 | } | |
1799 | ||
1800 | BFD_ASSERT (last_real == NULL || last_real->next == first_csect); | |
1801 | ||
1802 | /* Make sure that we have seen all the relocs. */ | |
1803 | for (o = abfd->sections; o != first_csect; o = o->next) | |
1804 | { | |
1805 | /* Reset the section size and the line number count, since the | |
1806 | data is now attached to the csects. Don't reset the size of | |
1807 | the .debug section, since we need to read it below in | |
1808 | bfd_xcoff_size_dynamic_sections. */ | |
1809 | if (strcmp (bfd_get_section_name (abfd, o), ".debug") != 0) | |
eea6121a | 1810 | o->size = 0; |
252b5132 RH |
1811 | o->lineno_count = 0; |
1812 | ||
1813 | if ((o->flags & SEC_RELOC) != 0) | |
1814 | { | |
1815 | bfd_size_type i; | |
1816 | struct internal_reloc *rel; | |
1817 | asection **rel_csect; | |
1818 | ||
1819 | rel = reloc_info[o->target_index].relocs; | |
1820 | rel_csect = reloc_info[o->target_index].csects; | |
beb1bf64 | 1821 | |
252b5132 RH |
1822 | for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++) |
1823 | { | |
1824 | if (*rel_csect == NULL) | |
1825 | { | |
1826 | (*_bfd_error_handler) | |
d003868e AM |
1827 | (_("%B: reloc %s:%d not in csect"), |
1828 | abfd, o->name, i); | |
252b5132 RH |
1829 | bfd_set_error (bfd_error_bad_value); |
1830 | goto error_return; | |
1831 | } | |
1832 | ||
858ef0ce RS |
1833 | /* We identify all function symbols that are the target |
1834 | of a relocation, so that we can create glue code for | |
1835 | functions imported from dynamic objects. */ | |
f13a99db | 1836 | if (info->output_bfd->xvec == abfd->xvec |
252b5132 | 1837 | && *rel_csect != bfd_und_section_ptr |
252b5132 RH |
1838 | && obj_xcoff_sym_hashes (abfd)[rel->r_symndx] != NULL) |
1839 | { | |
1840 | struct xcoff_link_hash_entry *h; | |
1841 | ||
1842 | h = obj_xcoff_sym_hashes (abfd)[rel->r_symndx]; | |
252b5132 | 1843 | /* If the symbol name starts with a period, it is |
b34976b6 AM |
1844 | the code of a function. If the symbol is |
1845 | currently undefined, then add an undefined symbol | |
1846 | for the function descriptor. This should do no | |
1847 | harm, because any regular object that defines the | |
1848 | function should also define the function | |
1849 | descriptor. It helps, because it means that we | |
1850 | will identify the function descriptor with a | |
1851 | dynamic object if a dynamic object defines it. */ | |
252b5132 RH |
1852 | if (h->root.root.string[0] == '.' |
1853 | && h->descriptor == NULL) | |
1854 | { | |
1855 | struct xcoff_link_hash_entry *hds; | |
14a793b2 | 1856 | struct bfd_link_hash_entry *bh; |
252b5132 RH |
1857 | |
1858 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
1859 | h->root.root.string + 1, | |
b34976b6 | 1860 | TRUE, FALSE, TRUE); |
252b5132 RH |
1861 | if (hds == NULL) |
1862 | goto error_return; | |
1863 | if (hds->root.type == bfd_link_hash_new) | |
1864 | { | |
14a793b2 | 1865 | bh = &hds->root; |
252b5132 RH |
1866 | if (! (_bfd_generic_link_add_one_symbol |
1867 | (info, abfd, hds->root.root.string, | |
1868 | (flagword) 0, bfd_und_section_ptr, | |
116c20d2 | 1869 | (bfd_vma) 0, NULL, FALSE, |
b34976b6 | 1870 | TRUE, &bh))) |
252b5132 | 1871 | goto error_return; |
14a793b2 | 1872 | hds = (struct xcoff_link_hash_entry *) bh; |
252b5132 RH |
1873 | } |
1874 | hds->flags |= XCOFF_DESCRIPTOR; | |
858ef0ce | 1875 | BFD_ASSERT ((h->flags & XCOFF_DESCRIPTOR) == 0); |
252b5132 RH |
1876 | hds->descriptor = h; |
1877 | h->descriptor = hds; | |
1878 | } | |
858ef0ce RS |
1879 | if (h->root.root.string[0] == '.') |
1880 | h->flags |= XCOFF_CALLED; | |
252b5132 RH |
1881 | } |
1882 | } | |
1883 | ||
1884 | free (reloc_info[o->target_index].csects); | |
1885 | reloc_info[o->target_index].csects = NULL; | |
1886 | ||
1887 | /* Reset SEC_RELOC and the reloc_count, since the reloc | |
1888 | information is now attached to the csects. */ | |
beb1bf64 | 1889 | o->flags &=~ SEC_RELOC; |
252b5132 RH |
1890 | o->reloc_count = 0; |
1891 | ||
1892 | /* If we are not keeping memory, free the reloc information. */ | |
1893 | if (! info->keep_memory | |
1894 | && coff_section_data (abfd, o) != NULL | |
1895 | && coff_section_data (abfd, o)->relocs != NULL | |
1896 | && ! coff_section_data (abfd, o)->keep_relocs) | |
1897 | { | |
1898 | free (coff_section_data (abfd, o)->relocs); | |
1899 | coff_section_data (abfd, o)->relocs = NULL; | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | /* Free up the line numbers. FIXME: We could cache these | |
b34976b6 | 1904 | somewhere for the final link, to avoid reading them again. */ |
252b5132 RH |
1905 | if (reloc_info[o->target_index].linenos != NULL) |
1906 | { | |
1907 | free (reloc_info[o->target_index].linenos); | |
1908 | reloc_info[o->target_index].linenos = NULL; | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | free (reloc_info); | |
1913 | ||
1914 | obj_coff_keep_syms (abfd) = keep_syms; | |
1915 | ||
b34976b6 | 1916 | return TRUE; |
252b5132 RH |
1917 | |
1918 | error_return: | |
1919 | if (reloc_info != NULL) | |
1920 | { | |
1921 | for (o = abfd->sections; o != NULL; o = o->next) | |
1922 | { | |
1923 | if (reloc_info[o->target_index].csects != NULL) | |
1924 | free (reloc_info[o->target_index].csects); | |
1925 | if (reloc_info[o->target_index].linenos != NULL) | |
1926 | free (reloc_info[o->target_index].linenos); | |
1927 | } | |
dc810e39 | 1928 | free (reloc_info); |
252b5132 RH |
1929 | } |
1930 | obj_coff_keep_syms (abfd) = keep_syms; | |
b34976b6 | 1931 | return FALSE; |
252b5132 RH |
1932 | } |
1933 | ||
1934 | #undef N_TMASK | |
1935 | #undef N_BTSHFT | |
1936 | ||
116c20d2 | 1937 | /* Add symbols from an XCOFF object file. */ |
252b5132 | 1938 | |
b34976b6 | 1939 | static bfd_boolean |
116c20d2 | 1940 | xcoff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 1941 | { |
116c20d2 NC |
1942 | if (! _bfd_coff_get_external_symbols (abfd)) |
1943 | return FALSE; | |
1944 | if (! xcoff_link_add_symbols (abfd, info)) | |
1945 | return FALSE; | |
1946 | if (! info->keep_memory) | |
252b5132 | 1947 | { |
116c20d2 NC |
1948 | if (! _bfd_coff_free_symbols (abfd)) |
1949 | return FALSE; | |
252b5132 | 1950 | } |
116c20d2 NC |
1951 | return TRUE; |
1952 | } | |
dc810e39 | 1953 | |
116c20d2 NC |
1954 | /* Look through the loader symbols to see if this dynamic object |
1955 | should be included in the link. The native linker uses the loader | |
1956 | symbols, not the normal symbol table, so we do too. */ | |
1957 | ||
1958 | static bfd_boolean | |
1959 | xcoff_link_check_dynamic_ar_symbols (bfd *abfd, | |
1960 | struct bfd_link_info *info, | |
1961 | bfd_boolean *pneeded) | |
1962 | { | |
1963 | asection *lsec; | |
1964 | bfd_byte *contents; | |
1965 | struct internal_ldhdr ldhdr; | |
1966 | const char *strings; | |
1967 | bfd_byte *elsym, *elsymend; | |
1968 | ||
1969 | *pneeded = FALSE; | |
252b5132 | 1970 | |
252b5132 RH |
1971 | lsec = bfd_get_section_by_name (abfd, ".loader"); |
1972 | if (lsec == NULL) | |
116c20d2 NC |
1973 | /* There are no symbols, so don't try to include it. */ |
1974 | return TRUE; | |
beb1bf64 | 1975 | |
252b5132 | 1976 | if (! xcoff_get_section_contents (abfd, lsec)) |
b34976b6 | 1977 | return FALSE; |
beb1bf64 | 1978 | contents = coff_section_data (abfd, lsec)->contents; |
252b5132 | 1979 | |
beb1bf64 TR |
1980 | bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr); |
1981 | ||
1982 | strings = (char *) contents + ldhdr.l_stoff; | |
1983 | ||
116c20d2 | 1984 | elsym = contents + bfd_xcoff_loader_symbol_offset (abfd, &ldhdr); |
252b5132 | 1985 | |
116c20d2 NC |
1986 | elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz (abfd); |
1987 | for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz (abfd)) | |
252b5132 RH |
1988 | { |
1989 | struct internal_ldsym ldsym; | |
1990 | char nambuf[SYMNMLEN + 1]; | |
1991 | const char *name; | |
116c20d2 | 1992 | struct bfd_link_hash_entry *h; |
252b5132 | 1993 | |
beb1bf64 | 1994 | bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym); |
252b5132 RH |
1995 | |
1996 | /* We are only interested in exported symbols. */ | |
1997 | if ((ldsym.l_smtype & L_EXPORT) == 0) | |
1998 | continue; | |
1999 | ||
2000 | if (ldsym._l._l_l._l_zeroes == 0) | |
2001 | name = strings + ldsym._l._l_l._l_offset; | |
2002 | else | |
2003 | { | |
2004 | memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); | |
2005 | nambuf[SYMNMLEN] = '\0'; | |
2006 | name = nambuf; | |
2007 | } | |
2008 | ||
116c20d2 | 2009 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
252b5132 | 2010 | |
116c20d2 NC |
2011 | /* We are only interested in symbols that are currently |
2012 | undefined. At this point we know that we are using an XCOFF | |
2013 | hash table. */ | |
2014 | if (h != NULL | |
2015 | && h->type == bfd_link_hash_undefined | |
2016 | && (((struct xcoff_link_hash_entry *) h)->flags | |
2017 | & XCOFF_DEF_DYNAMIC) == 0) | |
252b5132 | 2018 | { |
116c20d2 NC |
2019 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) |
2020 | return FALSE; | |
2021 | *pneeded = TRUE; | |
2022 | return TRUE; | |
252b5132 | 2023 | } |
116c20d2 | 2024 | } |
252b5132 | 2025 | |
116c20d2 NC |
2026 | /* We do not need this shared object. */ |
2027 | if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents) | |
2028 | { | |
2029 | free (coff_section_data (abfd, lsec)->contents); | |
2030 | coff_section_data (abfd, lsec)->contents = NULL; | |
2031 | } | |
252b5132 | 2032 | |
116c20d2 NC |
2033 | return TRUE; |
2034 | } | |
252b5132 | 2035 | |
116c20d2 NC |
2036 | /* Look through the symbols to see if this object file should be |
2037 | included in the link. */ | |
252b5132 | 2038 | |
116c20d2 NC |
2039 | static bfd_boolean |
2040 | xcoff_link_check_ar_symbols (bfd *abfd, | |
2041 | struct bfd_link_info *info, | |
2042 | bfd_boolean *pneeded) | |
2043 | { | |
2044 | bfd_size_type symesz; | |
2045 | bfd_byte *esym; | |
2046 | bfd_byte *esym_end; | |
252b5132 | 2047 | |
116c20d2 | 2048 | *pneeded = FALSE; |
252b5132 | 2049 | |
116c20d2 NC |
2050 | if ((abfd->flags & DYNAMIC) != 0 |
2051 | && ! info->static_link | |
f13a99db | 2052 | && info->output_bfd->xvec == abfd->xvec) |
116c20d2 | 2053 | return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded); |
252b5132 | 2054 | |
116c20d2 NC |
2055 | symesz = bfd_coff_symesz (abfd); |
2056 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
2057 | esym_end = esym + obj_raw_syment_count (abfd) * symesz; | |
2058 | while (esym < esym_end) | |
2059 | { | |
2060 | struct internal_syment sym; | |
252b5132 | 2061 | |
116c20d2 | 2062 | bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym); |
252b5132 | 2063 | |
116c20d2 NC |
2064 | if (sym.n_sclass == C_EXT && sym.n_scnum != N_UNDEF) |
2065 | { | |
2066 | const char *name; | |
2067 | char buf[SYMNMLEN + 1]; | |
2068 | struct bfd_link_hash_entry *h; | |
252b5132 | 2069 | |
116c20d2 NC |
2070 | /* This symbol is externally visible, and is defined by this |
2071 | object file. */ | |
2072 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); | |
2073 | ||
2074 | if (name == NULL) | |
2075 | return FALSE; | |
2076 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); | |
2077 | ||
2078 | /* We are only interested in symbols that are currently | |
2079 | undefined. If a symbol is currently known to be common, | |
2080 | XCOFF linkers do not bring in an object file which | |
2081 | defines it. We also don't bring in symbols to satisfy | |
2082 | undefined references in shared objects. */ | |
2083 | if (h != NULL | |
2084 | && h->type == bfd_link_hash_undefined | |
f13a99db | 2085 | && (info->output_bfd->xvec != abfd->xvec |
116c20d2 NC |
2086 | || (((struct xcoff_link_hash_entry *) h)->flags |
2087 | & XCOFF_DEF_DYNAMIC) == 0)) | |
252b5132 | 2088 | { |
116c20d2 NC |
2089 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) |
2090 | return FALSE; | |
2091 | *pneeded = TRUE; | |
2092 | return TRUE; | |
252b5132 RH |
2093 | } |
2094 | } | |
252b5132 | 2095 | |
116c20d2 | 2096 | esym += (sym.n_numaux + 1) * symesz; |
252b5132 RH |
2097 | } |
2098 | ||
116c20d2 NC |
2099 | /* We do not need this object file. */ |
2100 | return TRUE; | |
2101 | } | |
252b5132 | 2102 | |
116c20d2 NC |
2103 | /* Check a single archive element to see if we need to include it in |
2104 | the link. *PNEEDED is set according to whether this element is | |
2105 | needed in the link or not. This is called via | |
2106 | _bfd_generic_link_add_archive_symbols. */ | |
2107 | ||
2108 | static bfd_boolean | |
2109 | xcoff_link_check_archive_element (bfd *abfd, | |
2110 | struct bfd_link_info *info, | |
2111 | bfd_boolean *pneeded) | |
2112 | { | |
2113 | if (! _bfd_coff_get_external_symbols (abfd)) | |
b34976b6 | 2114 | return FALSE; |
252b5132 | 2115 | |
116c20d2 NC |
2116 | if (! xcoff_link_check_ar_symbols (abfd, info, pneeded)) |
2117 | return FALSE; | |
2118 | ||
2119 | if (*pneeded) | |
252b5132 | 2120 | { |
116c20d2 NC |
2121 | if (! xcoff_link_add_symbols (abfd, info)) |
2122 | return FALSE; | |
252b5132 | 2123 | } |
116c20d2 NC |
2124 | |
2125 | if (! info->keep_memory || ! *pneeded) | |
252b5132 | 2126 | { |
116c20d2 NC |
2127 | if (! _bfd_coff_free_symbols (abfd)) |
2128 | return FALSE; | |
252b5132 | 2129 | } |
252b5132 | 2130 | |
116c20d2 NC |
2131 | return TRUE; |
2132 | } | |
252b5132 | 2133 | |
116c20d2 NC |
2134 | /* Given an XCOFF BFD, add symbols to the global hash table as |
2135 | appropriate. */ | |
252b5132 | 2136 | |
116c20d2 NC |
2137 | bfd_boolean |
2138 | _bfd_xcoff_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info) | |
2139 | { | |
2140 | switch (bfd_get_format (abfd)) | |
2141 | { | |
2142 | case bfd_object: | |
2143 | return xcoff_link_add_object_symbols (abfd, info); | |
2144 | ||
2145 | case bfd_archive: | |
2146 | /* If the archive has a map, do the usual search. We then need | |
2147 | to check the archive for dynamic objects, because they may not | |
2148 | appear in the archive map even though they should, perhaps, be | |
2149 | included. If the archive has no map, we just consider each object | |
2150 | file in turn, since that apparently is what the AIX native linker | |
2151 | does. */ | |
2152 | if (bfd_has_map (abfd)) | |
2153 | { | |
2154 | if (! (_bfd_generic_link_add_archive_symbols | |
2155 | (abfd, info, xcoff_link_check_archive_element))) | |
2156 | return FALSE; | |
2157 | } | |
2158 | ||
2159 | { | |
2160 | bfd *member; | |
2161 | ||
2162 | member = bfd_openr_next_archived_file (abfd, NULL); | |
2163 | while (member != NULL) | |
2164 | { | |
2165 | if (bfd_check_format (member, bfd_object) | |
f13a99db | 2166 | && (info->output_bfd->xvec == member->xvec) |
116c20d2 NC |
2167 | && (! bfd_has_map (abfd) || (member->flags & DYNAMIC) != 0)) |
2168 | { | |
2169 | bfd_boolean needed; | |
2170 | ||
2171 | if (! xcoff_link_check_archive_element (member, info, | |
2172 | &needed)) | |
2173 | return FALSE; | |
2174 | if (needed) | |
2175 | member->archive_pass = -1; | |
2176 | } | |
2177 | member = bfd_openr_next_archived_file (abfd, member); | |
2178 | } | |
2179 | } | |
2180 | ||
2181 | return TRUE; | |
2182 | ||
2183 | default: | |
2184 | bfd_set_error (bfd_error_wrong_format); | |
2185 | return FALSE; | |
2186 | } | |
252b5132 RH |
2187 | } |
2188 | \f | |
858ef0ce RS |
2189 | /* If symbol H has not been interpreted as a function descriptor, |
2190 | see whether it should be. Set up its descriptor information if so. */ | |
2191 | ||
2192 | static bfd_boolean | |
2193 | xcoff_find_function (struct bfd_link_info *info, | |
2194 | struct xcoff_link_hash_entry *h) | |
2195 | { | |
2196 | if ((h->flags & XCOFF_DESCRIPTOR) == 0 | |
2197 | && h->root.root.string[0] != '.') | |
2198 | { | |
2199 | char *fnname; | |
2200 | struct xcoff_link_hash_entry *hfn; | |
2201 | bfd_size_type amt; | |
2202 | ||
2203 | amt = strlen (h->root.root.string) + 2; | |
2204 | fnname = bfd_malloc (amt); | |
2205 | if (fnname == NULL) | |
2206 | return FALSE; | |
2207 | fnname[0] = '.'; | |
2208 | strcpy (fnname + 1, h->root.root.string); | |
2209 | hfn = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
2210 | fnname, FALSE, FALSE, TRUE); | |
2211 | free (fnname); | |
2212 | if (hfn != NULL | |
2213 | && hfn->smclas == XMC_PR | |
2214 | && (hfn->root.type == bfd_link_hash_defined | |
2215 | || hfn->root.type == bfd_link_hash_defweak)) | |
2216 | { | |
2217 | h->flags |= XCOFF_DESCRIPTOR; | |
2218 | h->descriptor = hfn; | |
2219 | hfn->descriptor = h; | |
2220 | } | |
2221 | } | |
2222 | return TRUE; | |
2223 | } | |
2224 | ||
2225 | /* H is an imported symbol. Set the import module's path, file and member | |
2226 | to IMPATH, IMPFILE and IMPMEMBER respectively. All three are null if | |
2227 | no specific import module is specified. */ | |
2228 | ||
2229 | static bfd_boolean | |
2230 | xcoff_set_import_path (struct bfd_link_info *info, | |
2231 | struct xcoff_link_hash_entry *h, | |
2232 | const char *imppath, const char *impfile, | |
2233 | const char *impmember) | |
2234 | { | |
2235 | unsigned int c; | |
2236 | struct xcoff_import_file **pp; | |
2237 | ||
2238 | /* We overload the ldindx field to hold the l_ifile value for this | |
2239 | symbol. */ | |
2240 | BFD_ASSERT (h->ldsym == NULL); | |
2241 | BFD_ASSERT ((h->flags & XCOFF_BUILT_LDSYM) == 0); | |
2242 | if (imppath == NULL) | |
2243 | h->ldindx = -1; | |
2244 | else | |
2245 | { | |
2246 | /* We start c at 1 because the first entry in the import list is | |
2247 | reserved for the library search path. */ | |
2248 | for (pp = &xcoff_hash_table (info)->imports, c = 1; | |
2249 | *pp != NULL; | |
2250 | pp = &(*pp)->next, ++c) | |
2251 | { | |
2252 | if (strcmp ((*pp)->path, imppath) == 0 | |
2253 | && strcmp ((*pp)->file, impfile) == 0 | |
2254 | && strcmp ((*pp)->member, impmember) == 0) | |
2255 | break; | |
2256 | } | |
2257 | ||
2258 | if (*pp == NULL) | |
2259 | { | |
2260 | struct xcoff_import_file *n; | |
2261 | bfd_size_type amt = sizeof (* n); | |
2262 | ||
2263 | n = bfd_alloc (info->output_bfd, amt); | |
2264 | if (n == NULL) | |
2265 | return FALSE; | |
2266 | n->next = NULL; | |
2267 | n->path = imppath; | |
2268 | n->file = impfile; | |
2269 | n->member = impmember; | |
2270 | *pp = n; | |
2271 | } | |
2272 | h->ldindx = c; | |
2273 | } | |
2274 | return TRUE; | |
2275 | } | |
2276 | \f | |
252b5132 RH |
2277 | /* Mark a symbol as not being garbage, including the section in which |
2278 | it is defined. */ | |
2279 | ||
116c20d2 NC |
2280 | static inline bfd_boolean |
2281 | xcoff_mark_symbol (struct bfd_link_info *info, struct xcoff_link_hash_entry *h) | |
252b5132 RH |
2282 | { |
2283 | if ((h->flags & XCOFF_MARK) != 0) | |
b34976b6 | 2284 | return TRUE; |
252b5132 RH |
2285 | |
2286 | h->flags |= XCOFF_MARK; | |
858ef0ce RS |
2287 | |
2288 | /* If we're marking an undefined symbol, try find some way of | |
2289 | defining it. */ | |
2290 | if (!info->relocatable | |
2291 | && (h->flags & XCOFF_IMPORT) == 0 | |
2292 | && (h->flags & XCOFF_DEF_REGULAR) == 0 | |
2293 | && (h->root.type == bfd_link_hash_undefined | |
2294 | || h->root.type == bfd_link_hash_undefweak)) | |
2295 | { | |
2296 | /* First check whether this symbol can be interpreted as an | |
2297 | undefined function descriptor for a defined function symbol. */ | |
2298 | if (!xcoff_find_function (info, h)) | |
2299 | return FALSE; | |
2300 | ||
2301 | if ((h->flags & XCOFF_DESCRIPTOR) != 0 | |
2302 | && (h->descriptor->root.type == bfd_link_hash_defined | |
2303 | || h->descriptor->root.type == bfd_link_hash_defweak)) | |
2304 | { | |
2305 | /* This is a descriptor for a defined symbol, but the input | |
2306 | objects have not defined the descriptor itself. Fill in | |
2307 | the definition automatically. | |
2308 | ||
2309 | Note that we do this even if we found a dynamic definition | |
2310 | of H. The local function definition logically overrides | |
2311 | the dynamic one. */ | |
2312 | asection *sec; | |
2313 | ||
2314 | sec = xcoff_hash_table (info)->descriptor_section; | |
2315 | h->root.type = bfd_link_hash_defined; | |
2316 | h->root.u.def.section = sec; | |
2317 | h->root.u.def.value = sec->size; | |
2318 | h->smclas = XMC_DS; | |
2319 | h->flags |= XCOFF_DEF_REGULAR; | |
2320 | ||
2321 | /* The size of the function descriptor depends on whether this | |
2322 | is xcoff32 (12) or xcoff64 (24). */ | |
2323 | sec->size += bfd_xcoff_function_descriptor_size (sec->owner); | |
2324 | ||
2325 | /* A function descriptor uses two relocs: one for the | |
2326 | associated code, and one for the TOC address. */ | |
2327 | xcoff_hash_table (info)->ldrel_count += 2; | |
2328 | sec->reloc_count += 2; | |
2329 | ||
2330 | /* Mark the function itself. */ | |
2331 | if (!xcoff_mark_symbol (info, h->descriptor)) | |
2332 | return FALSE; | |
2333 | ||
47dfb2ca RS |
2334 | /* Mark the TOC section, so that we get an anchor |
2335 | to relocate against. */ | |
2336 | if (!xcoff_mark (info, xcoff_hash_table (info)->toc_section)) | |
2337 | return FALSE; | |
2338 | ||
858ef0ce RS |
2339 | /* We handle writing out the contents of the descriptor in |
2340 | xcoff_write_global_symbol. */ | |
2341 | } | |
2342 | else if ((h->flags & XCOFF_CALLED) != 0) | |
2343 | { | |
2344 | /* This is a function symbol for which we need to create | |
2345 | linkage code. */ | |
2346 | asection *sec; | |
2347 | struct xcoff_link_hash_entry *hds; | |
2348 | ||
2349 | /* Mark the descriptor (and its TOC section). */ | |
2350 | hds = h->descriptor; | |
2351 | BFD_ASSERT ((hds->root.type == bfd_link_hash_undefined | |
2352 | || hds->root.type == bfd_link_hash_undefweak) | |
2353 | && (hds->flags & XCOFF_DEF_REGULAR) == 0); | |
2354 | if (!xcoff_mark_symbol (info, hds)) | |
2355 | return FALSE; | |
2356 | ||
2357 | /* Treat this symbol as undefined if the descriptor was. */ | |
2358 | if ((hds->flags & XCOFF_WAS_UNDEFINED) != 0) | |
2359 | h->flags |= XCOFF_WAS_UNDEFINED; | |
2360 | ||
2361 | /* Allocate room for the global linkage code itself. */ | |
2362 | sec = xcoff_hash_table (info)->linkage_section; | |
2363 | h->root.type = bfd_link_hash_defined; | |
2364 | h->root.u.def.section = sec; | |
2365 | h->root.u.def.value = sec->size; | |
2366 | h->smclas = XMC_GL; | |
2367 | h->flags |= XCOFF_DEF_REGULAR; | |
2368 | sec->size += bfd_xcoff_glink_code_size (info->output_bfd); | |
2369 | ||
2370 | /* The global linkage code requires a TOC entry for the | |
2371 | descriptor. */ | |
2372 | if (hds->toc_section == NULL) | |
2373 | { | |
2374 | int byte_size; | |
2375 | ||
2376 | /* 32 vs 64 | |
2377 | xcoff32 uses 4 bytes in the toc. | |
2378 | xcoff64 uses 8 bytes in the toc. */ | |
2379 | if (bfd_xcoff_is_xcoff64 (info->output_bfd)) | |
2380 | byte_size = 8; | |
2381 | else if (bfd_xcoff_is_xcoff32 (info->output_bfd)) | |
2382 | byte_size = 4; | |
2383 | else | |
2384 | return FALSE; | |
2385 | ||
2386 | /* Allocate room in the fallback TOC section. */ | |
2387 | hds->toc_section = xcoff_hash_table (info)->toc_section; | |
2388 | hds->u.toc_offset = hds->toc_section->size; | |
2389 | hds->toc_section->size += byte_size; | |
2390 | if (!xcoff_mark (info, hds->toc_section)) | |
2391 | return FALSE; | |
2392 | ||
2393 | /* Allocate room for a static and dynamic R_TOC | |
2394 | relocation. */ | |
2395 | ++xcoff_hash_table (info)->ldrel_count; | |
2396 | ++hds->toc_section->reloc_count; | |
2397 | ||
2398 | /* Set the index to -2 to force this symbol to | |
2399 | get written out. */ | |
2400 | hds->indx = -2; | |
2401 | hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL; | |
2402 | } | |
2403 | } | |
2404 | else if ((h->flags & XCOFF_DEF_DYNAMIC) == 0) | |
2405 | { | |
2406 | /* Record that the symbol was undefined, then import it. | |
2407 | -brtl links use a special fake import file. */ | |
2408 | h->flags |= XCOFF_WAS_UNDEFINED | XCOFF_IMPORT; | |
2409 | if (xcoff_hash_table (info)->rtld) | |
2410 | { | |
2411 | if (!xcoff_set_import_path (info, h, "", "..", "")) | |
2412 | return FALSE; | |
2413 | } | |
2414 | else | |
2415 | { | |
2416 | if (!xcoff_set_import_path (info, h, NULL, NULL, NULL)) | |
2417 | return FALSE; | |
2418 | } | |
2419 | } | |
2420 | } | |
2421 | ||
252b5132 RH |
2422 | if (h->root.type == bfd_link_hash_defined |
2423 | || h->root.type == bfd_link_hash_defweak) | |
2424 | { | |
2425 | asection *hsec; | |
2426 | ||
2427 | hsec = h->root.u.def.section; | |
2428 | if (! bfd_is_abs_section (hsec) | |
2429 | && (hsec->flags & SEC_MARK) == 0) | |
2430 | { | |
2431 | if (! xcoff_mark (info, hsec)) | |
b34976b6 | 2432 | return FALSE; |
252b5132 RH |
2433 | } |
2434 | } | |
2435 | ||
2436 | if (h->toc_section != NULL | |
2437 | && (h->toc_section->flags & SEC_MARK) == 0) | |
2438 | { | |
2439 | if (! xcoff_mark (info, h->toc_section)) | |
b34976b6 | 2440 | return FALSE; |
252b5132 RH |
2441 | } |
2442 | ||
b34976b6 | 2443 | return TRUE; |
252b5132 RH |
2444 | } |
2445 | ||
2446 | /* The mark phase of garbage collection. For a given section, mark | |
2447 | it, and all the sections which define symbols to which it refers. | |
2448 | Because this function needs to look at the relocs, we also count | |
2449 | the number of relocs which need to be copied into the .loader | |
2450 | section. */ | |
2451 | ||
b34976b6 | 2452 | static bfd_boolean |
116c20d2 | 2453 | xcoff_mark (struct bfd_link_info *info, asection *sec) |
252b5132 RH |
2454 | { |
2455 | if (bfd_is_abs_section (sec) | |
2456 | || (sec->flags & SEC_MARK) != 0) | |
b34976b6 | 2457 | return TRUE; |
252b5132 RH |
2458 | |
2459 | sec->flags |= SEC_MARK; | |
2460 | ||
f13a99db | 2461 | if (sec->owner->xvec == info->output_bfd->xvec |
252b5132 RH |
2462 | && coff_section_data (sec->owner, sec) != NULL |
2463 | && xcoff_section_data (sec->owner, sec) != NULL) | |
2464 | { | |
4cc02a02 | 2465 | struct xcoff_link_hash_entry **syms; |
252b5132 | 2466 | struct internal_reloc *rel, *relend; |
4cc02a02 RS |
2467 | asection **csects; |
2468 | unsigned long i, first, last; | |
252b5132 RH |
2469 | |
2470 | /* Mark all the symbols in this section. */ | |
4cc02a02 RS |
2471 | syms = obj_xcoff_sym_hashes (sec->owner); |
2472 | csects = xcoff_data (sec->owner)->csects; | |
2473 | first = xcoff_section_data (sec->owner, sec)->first_symndx; | |
2474 | last = xcoff_section_data (sec->owner, sec)->last_symndx; | |
2475 | for (i = first; i <= last; i++) | |
2476 | if (csects[i] == sec | |
2477 | && syms[i] != NULL | |
2478 | && (syms[i]->flags & XCOFF_MARK) == 0) | |
2479 | { | |
2480 | if (!xcoff_mark_symbol (info, syms[i])) | |
2481 | return FALSE; | |
2482 | } | |
252b5132 RH |
2483 | |
2484 | /* Look through the section relocs. */ | |
252b5132 RH |
2485 | if ((sec->flags & SEC_RELOC) != 0 |
2486 | && sec->reloc_count > 0) | |
2487 | { | |
b34976b6 | 2488 | rel = xcoff_read_internal_relocs (sec->owner, sec, TRUE, |
116c20d2 | 2489 | NULL, FALSE, NULL); |
252b5132 | 2490 | if (rel == NULL) |
b34976b6 | 2491 | return FALSE; |
252b5132 RH |
2492 | relend = rel + sec->reloc_count; |
2493 | for (; rel < relend; rel++) | |
2494 | { | |
2495 | asection *rsec; | |
2496 | struct xcoff_link_hash_entry *h; | |
2497 | ||
2498 | if ((unsigned int) rel->r_symndx | |
2499 | > obj_raw_syment_count (sec->owner)) | |
2500 | continue; | |
2501 | ||
2502 | h = obj_xcoff_sym_hashes (sec->owner)[rel->r_symndx]; | |
2503 | if (h != NULL | |
2504 | && (h->flags & XCOFF_MARK) == 0) | |
2505 | { | |
2506 | if (! xcoff_mark_symbol (info, h)) | |
b34976b6 | 2507 | return FALSE; |
252b5132 RH |
2508 | } |
2509 | ||
2510 | rsec = xcoff_data (sec->owner)->csects[rel->r_symndx]; | |
2511 | if (rsec != NULL | |
4cc02a02 RS |
2512 | && !bfd_is_und_section (rsec) |
2513 | && !bfd_is_abs_section (rsec) | |
252b5132 RH |
2514 | && (rsec->flags & SEC_MARK) == 0) |
2515 | { | |
2516 | if (! xcoff_mark (info, rsec)) | |
b34976b6 | 2517 | return FALSE; |
252b5132 RH |
2518 | } |
2519 | ||
2520 | /* See if this reloc needs to be copied into the .loader | |
b34976b6 | 2521 | section. */ |
252b5132 RH |
2522 | switch (rel->r_type) |
2523 | { | |
2524 | default: | |
2525 | if (h == NULL | |
2526 | || h->root.type == bfd_link_hash_defined | |
2527 | || h->root.type == bfd_link_hash_defweak | |
2528 | || h->root.type == bfd_link_hash_common | |
858ef0ce RS |
2529 | /* We will always provide a local definition of |
2530 | function symbols. */ | |
2531 | || (h->flags & XCOFF_CALLED) != 0) | |
252b5132 RH |
2532 | break; |
2533 | /* Fall through. */ | |
2534 | case R_POS: | |
2535 | case R_NEG: | |
2536 | case R_RL: | |
2537 | case R_RLA: | |
0e3212ad RS |
2538 | if (h != NULL |
2539 | && (h->root.type == bfd_link_hash_defined | |
2540 | || h->root.type == bfd_link_hash_defweak) | |
2541 | && bfd_is_abs_section (h->root.u.def.section)) | |
2542 | break; | |
252b5132 RH |
2543 | ++xcoff_hash_table (info)->ldrel_count; |
2544 | if (h != NULL) | |
2545 | h->flags |= XCOFF_LDREL; | |
2546 | break; | |
2547 | case R_TOC: | |
2548 | case R_GL: | |
2549 | case R_TCL: | |
2550 | case R_TRL: | |
2551 | case R_TRLA: | |
2552 | /* We should never need a .loader reloc for a TOC | |
2553 | relative reloc. */ | |
2554 | break; | |
2555 | } | |
2556 | } | |
2557 | ||
2558 | if (! info->keep_memory | |
2559 | && coff_section_data (sec->owner, sec) != NULL | |
2560 | && coff_section_data (sec->owner, sec)->relocs != NULL | |
2561 | && ! coff_section_data (sec->owner, sec)->keep_relocs) | |
2562 | { | |
2563 | free (coff_section_data (sec->owner, sec)->relocs); | |
2564 | coff_section_data (sec->owner, sec)->relocs = NULL; | |
2565 | } | |
2566 | } | |
2567 | } | |
2568 | ||
b34976b6 | 2569 | return TRUE; |
252b5132 RH |
2570 | } |
2571 | ||
116c20d2 NC |
2572 | /* Routines that are called after all the input files have been |
2573 | handled, but before the sections are laid out in memory. */ | |
2574 | ||
252b5132 RH |
2575 | /* The sweep phase of garbage collection. Remove all garbage |
2576 | sections. */ | |
2577 | ||
2578 | static void | |
116c20d2 | 2579 | xcoff_sweep (struct bfd_link_info *info) |
252b5132 RH |
2580 | { |
2581 | bfd *sub; | |
2582 | ||
2583 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
2584 | { | |
2585 | asection *o; | |
2586 | ||
2587 | for (o = sub->sections; o != NULL; o = o->next) | |
2588 | { | |
2589 | if ((o->flags & SEC_MARK) == 0) | |
2590 | { | |
2591 | /* Keep all sections from non-XCOFF input files. Keep | |
b34976b6 AM |
2592 | special sections. Keep .debug sections for the |
2593 | moment. */ | |
f13a99db | 2594 | if (sub->xvec != info->output_bfd->xvec |
252b5132 RH |
2595 | || o == xcoff_hash_table (info)->debug_section |
2596 | || o == xcoff_hash_table (info)->loader_section | |
2597 | || o == xcoff_hash_table (info)->linkage_section | |
252b5132 RH |
2598 | || o == xcoff_hash_table (info)->descriptor_section |
2599 | || strcmp (o->name, ".debug") == 0) | |
2600 | o->flags |= SEC_MARK; | |
2601 | else | |
2602 | { | |
eea6121a | 2603 | o->size = 0; |
252b5132 RH |
2604 | o->reloc_count = 0; |
2605 | o->lineno_count = 0; | |
2606 | } | |
2607 | } | |
2608 | } | |
2609 | } | |
2610 | } | |
2611 | ||
2612 | /* Record the number of elements in a set. This is used to output the | |
2613 | correct csect length. */ | |
2614 | ||
b34976b6 | 2615 | bfd_boolean |
116c20d2 NC |
2616 | bfd_xcoff_link_record_set (bfd *output_bfd, |
2617 | struct bfd_link_info *info, | |
2618 | struct bfd_link_hash_entry *harg, | |
2619 | bfd_size_type size) | |
252b5132 RH |
2620 | { |
2621 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
2622 | struct xcoff_link_size_list *n; | |
dc810e39 | 2623 | bfd_size_type amt; |
252b5132 | 2624 | |
9bd09e22 | 2625 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 2626 | return TRUE; |
252b5132 RH |
2627 | |
2628 | /* This will hardly ever be called. I don't want to burn four bytes | |
2629 | per global symbol, so instead the size is kept on a linked list | |
2630 | attached to the hash table. */ | |
116c20d2 NC |
2631 | amt = sizeof (* n); |
2632 | n = bfd_alloc (output_bfd, amt); | |
252b5132 | 2633 | if (n == NULL) |
b34976b6 | 2634 | return FALSE; |
252b5132 RH |
2635 | n->next = xcoff_hash_table (info)->size_list; |
2636 | n->h = h; | |
2637 | n->size = size; | |
2638 | xcoff_hash_table (info)->size_list = n; | |
2639 | ||
2640 | h->flags |= XCOFF_HAS_SIZE; | |
2641 | ||
b34976b6 | 2642 | return TRUE; |
252b5132 RH |
2643 | } |
2644 | ||
2645 | /* Import a symbol. */ | |
2646 | ||
b34976b6 | 2647 | bfd_boolean |
116c20d2 NC |
2648 | bfd_xcoff_import_symbol (bfd *output_bfd, |
2649 | struct bfd_link_info *info, | |
2650 | struct bfd_link_hash_entry *harg, | |
2651 | bfd_vma val, | |
2652 | const char *imppath, | |
2653 | const char *impfile, | |
2654 | const char *impmember, | |
2655 | unsigned int syscall_flag) | |
252b5132 RH |
2656 | { |
2657 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
2658 | ||
9bd09e22 | 2659 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 2660 | return TRUE; |
252b5132 RH |
2661 | |
2662 | /* A symbol name which starts with a period is the code for a | |
2663 | function. If the symbol is undefined, then add an undefined | |
2664 | symbol for the function descriptor, and import that instead. */ | |
2665 | if (h->root.root.string[0] == '.' | |
2666 | && h->root.type == bfd_link_hash_undefined | |
2667 | && val == (bfd_vma) -1) | |
2668 | { | |
2669 | struct xcoff_link_hash_entry *hds; | |
2670 | ||
2671 | hds = h->descriptor; | |
2672 | if (hds == NULL) | |
2673 | { | |
2674 | hds = xcoff_link_hash_lookup (xcoff_hash_table (info), | |
2675 | h->root.root.string + 1, | |
b34976b6 | 2676 | TRUE, FALSE, TRUE); |
252b5132 | 2677 | if (hds == NULL) |
b34976b6 | 2678 | return FALSE; |
252b5132 RH |
2679 | if (hds->root.type == bfd_link_hash_new) |
2680 | { | |
2681 | hds->root.type = bfd_link_hash_undefined; | |
2682 | hds->root.u.undef.abfd = h->root.u.undef.abfd; | |
2683 | } | |
2684 | hds->flags |= XCOFF_DESCRIPTOR; | |
858ef0ce | 2685 | BFD_ASSERT ((h->flags & XCOFF_DESCRIPTOR) == 0); |
252b5132 RH |
2686 | hds->descriptor = h; |
2687 | h->descriptor = hds; | |
2688 | } | |
2689 | ||
2690 | /* Now, if the descriptor is undefined, import the descriptor | |
b34976b6 AM |
2691 | rather than the symbol we were told to import. FIXME: Is |
2692 | this correct in all cases? */ | |
252b5132 RH |
2693 | if (hds->root.type == bfd_link_hash_undefined) |
2694 | h = hds; | |
2695 | } | |
2696 | ||
1fdf0249 | 2697 | h->flags |= (XCOFF_IMPORT | syscall_flag); |
252b5132 RH |
2698 | |
2699 | if (val != (bfd_vma) -1) | |
2700 | { | |
2701 | if (h->root.type == bfd_link_hash_defined | |
2702 | && (! bfd_is_abs_section (h->root.u.def.section) | |
2703 | || h->root.u.def.value != val)) | |
2704 | { | |
2705 | if (! ((*info->callbacks->multiple_definition) | |
2706 | (info, h->root.root.string, h->root.u.def.section->owner, | |
2707 | h->root.u.def.section, h->root.u.def.value, | |
2708 | output_bfd, bfd_abs_section_ptr, val))) | |
b34976b6 | 2709 | return FALSE; |
252b5132 RH |
2710 | } |
2711 | ||
2712 | h->root.type = bfd_link_hash_defined; | |
2713 | h->root.u.def.section = bfd_abs_section_ptr; | |
2714 | h->root.u.def.value = val; | |
2715 | } | |
2716 | ||
858ef0ce RS |
2717 | if (!xcoff_set_import_path (info, h, imppath, impfile, impmember)) |
2718 | return FALSE; | |
252b5132 | 2719 | |
b34976b6 | 2720 | return TRUE; |
252b5132 RH |
2721 | } |
2722 | ||
2723 | /* Export a symbol. */ | |
2724 | ||
b34976b6 | 2725 | bfd_boolean |
116c20d2 NC |
2726 | bfd_xcoff_export_symbol (bfd *output_bfd, |
2727 | struct bfd_link_info *info, | |
2728 | struct bfd_link_hash_entry *harg) | |
252b5132 RH |
2729 | { |
2730 | struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; | |
2731 | ||
9bd09e22 | 2732 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 2733 | return TRUE; |
252b5132 RH |
2734 | |
2735 | h->flags |= XCOFF_EXPORT; | |
2736 | ||
2737 | /* FIXME: I'm not at all sure what syscall is supposed to mean, so | |
2738 | I'm just going to ignore it until somebody explains it. */ | |
2739 | ||
252b5132 RH |
2740 | /* Make sure we don't garbage collect this symbol. */ |
2741 | if (! xcoff_mark_symbol (info, h)) | |
b34976b6 | 2742 | return FALSE; |
252b5132 RH |
2743 | |
2744 | /* If this is a function descriptor, make sure we don't garbage | |
2745 | collect the associated function code. We normally don't have to | |
2746 | worry about this, because the descriptor will be attached to a | |
2747 | section with relocs, but if we are creating the descriptor | |
2748 | ourselves those relocs will not be visible to the mark code. */ | |
2749 | if ((h->flags & XCOFF_DESCRIPTOR) != 0) | |
2750 | { | |
2751 | if (! xcoff_mark_symbol (info, h->descriptor)) | |
b34976b6 | 2752 | return FALSE; |
252b5132 RH |
2753 | } |
2754 | ||
b34976b6 | 2755 | return TRUE; |
252b5132 RH |
2756 | } |
2757 | ||
2758 | /* Count a reloc against a symbol. This is called for relocs | |
2759 | generated by the linker script, typically for global constructors | |
2760 | and destructors. */ | |
2761 | ||
b34976b6 | 2762 | bfd_boolean |
116c20d2 NC |
2763 | bfd_xcoff_link_count_reloc (bfd *output_bfd, |
2764 | struct bfd_link_info *info, | |
2765 | const char *name) | |
252b5132 RH |
2766 | { |
2767 | struct xcoff_link_hash_entry *h; | |
2768 | ||
9bd09e22 | 2769 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 2770 | return TRUE; |
252b5132 RH |
2771 | |
2772 | h = ((struct xcoff_link_hash_entry *) | |
b34976b6 AM |
2773 | bfd_wrapped_link_hash_lookup (output_bfd, info, name, FALSE, FALSE, |
2774 | FALSE)); | |
252b5132 RH |
2775 | if (h == NULL) |
2776 | { | |
2777 | (*_bfd_error_handler) (_("%s: no such symbol"), name); | |
2778 | bfd_set_error (bfd_error_no_symbols); | |
b34976b6 | 2779 | return FALSE; |
252b5132 RH |
2780 | } |
2781 | ||
2782 | h->flags |= XCOFF_REF_REGULAR | XCOFF_LDREL; | |
2783 | ++xcoff_hash_table (info)->ldrel_count; | |
fbc4fff4 | 2784 | |
252b5132 RH |
2785 | /* Mark the symbol to avoid garbage collection. */ |
2786 | if (! xcoff_mark_symbol (info, h)) | |
b34976b6 | 2787 | return FALSE; |
252b5132 | 2788 | |
b34976b6 | 2789 | return TRUE; |
252b5132 RH |
2790 | } |
2791 | ||
2792 | /* This function is called for each symbol to which the linker script | |
2793 | assigns a value. */ | |
2794 | ||
b34976b6 | 2795 | bfd_boolean |
116c20d2 NC |
2796 | bfd_xcoff_record_link_assignment (bfd *output_bfd, |
2797 | struct bfd_link_info *info, | |
2798 | const char *name) | |
252b5132 RH |
2799 | { |
2800 | struct xcoff_link_hash_entry *h; | |
2801 | ||
9bd09e22 | 2802 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
b34976b6 | 2803 | return TRUE; |
252b5132 | 2804 | |
b34976b6 AM |
2805 | h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE, TRUE, |
2806 | FALSE); | |
252b5132 | 2807 | if (h == NULL) |
b34976b6 | 2808 | return FALSE; |
252b5132 RH |
2809 | |
2810 | h->flags |= XCOFF_DEF_REGULAR; | |
2811 | ||
b34976b6 | 2812 | return TRUE; |
252b5132 RH |
2813 | } |
2814 | ||
116c20d2 | 2815 | /* Add a symbol to the .loader symbols, if necessary. */ |
252b5132 | 2816 | |
116c20d2 NC |
2817 | static bfd_boolean |
2818 | xcoff_build_ldsyms (struct xcoff_link_hash_entry *h, void * p) | |
252b5132 | 2819 | { |
116c20d2 | 2820 | struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p; |
dc810e39 | 2821 | bfd_size_type amt; |
252b5132 | 2822 | |
116c20d2 NC |
2823 | if (h->root.type == bfd_link_hash_warning) |
2824 | h = (struct xcoff_link_hash_entry *) h->root.u.i.link; | |
b34976b6 | 2825 | |
116c20d2 NC |
2826 | /* __rtinit, this symbol has special handling. */ |
2827 | if (h->flags & XCOFF_RTINIT) | |
2828 | return TRUE; | |
b34976b6 | 2829 | |
116c20d2 NC |
2830 | /* If this is a final link, and the symbol was defined as a common |
2831 | symbol in a regular object file, and there was no definition in | |
2832 | any dynamic object, then the linker will have allocated space for | |
2833 | the symbol in a common section but the XCOFF_DEF_REGULAR flag | |
2834 | will not have been set. */ | |
2835 | if (h->root.type == bfd_link_hash_defined | |
2836 | && (h->flags & XCOFF_DEF_REGULAR) == 0 | |
2837 | && (h->flags & XCOFF_REF_REGULAR) != 0 | |
2838 | && (h->flags & XCOFF_DEF_DYNAMIC) == 0 | |
2839 | && (bfd_is_abs_section (h->root.u.def.section) | |
2840 | || (h->root.u.def.section->owner->flags & DYNAMIC) == 0)) | |
2841 | h->flags |= XCOFF_DEF_REGULAR; | |
beb1bf64 | 2842 | |
116c20d2 NC |
2843 | /* If all defined symbols should be exported, mark them now. We |
2844 | don't want to export the actual functions, just the function | |
2845 | descriptors. */ | |
2846 | if (ldinfo->export_defineds | |
2847 | && (h->flags & XCOFF_DEF_REGULAR) != 0 | |
2848 | && h->root.root.string[0] != '.') | |
252b5132 | 2849 | { |
116c20d2 | 2850 | bfd_boolean export; |
252b5132 | 2851 | |
116c20d2 NC |
2852 | /* We don't export a symbol which is being defined by an object |
2853 | included from an archive which contains a shared object. The | |
2854 | rationale is that if an archive contains both an unshared and | |
2855 | a shared object, then there must be some reason that the | |
2856 | unshared object is unshared, and we don't want to start | |
2857 | providing a shared version of it. In particular, this solves | |
2858 | a bug involving the _savefNN set of functions. gcc will call | |
2859 | those functions without providing a slot to restore the TOC, | |
2860 | so it is essential that these functions be linked in directly | |
2861 | and not from a shared object, which means that a shared | |
2862 | object which also happens to link them in must not export | |
2863 | them. This is confusing, but I haven't been able to think of | |
2864 | a different approach. Note that the symbols can, of course, | |
2865 | be exported explicitly. */ | |
2866 | export = TRUE; | |
2867 | if ((h->root.type == bfd_link_hash_defined | |
2868 | || h->root.type == bfd_link_hash_defweak) | |
2869 | && h->root.u.def.section->owner != NULL | |
2870 | && h->root.u.def.section->owner->my_archive != NULL) | |
252b5132 | 2871 | { |
116c20d2 | 2872 | bfd *arbfd, *member; |
252b5132 | 2873 | |
116c20d2 NC |
2874 | arbfd = h->root.u.def.section->owner->my_archive; |
2875 | member = bfd_openr_next_archived_file (arbfd, NULL); | |
2876 | while (member != NULL) | |
252b5132 | 2877 | { |
116c20d2 | 2878 | if ((member->flags & DYNAMIC) != 0) |
252b5132 | 2879 | { |
116c20d2 NC |
2880 | export = FALSE; |
2881 | break; | |
252b5132 | 2882 | } |
116c20d2 | 2883 | member = bfd_openr_next_archived_file (arbfd, member); |
252b5132 RH |
2884 | } |
2885 | } | |
116c20d2 NC |
2886 | |
2887 | if (export) | |
2888 | h->flags |= XCOFF_EXPORT; | |
252b5132 RH |
2889 | } |
2890 | ||
116c20d2 NC |
2891 | /* We don't want to garbage collect symbols which are not defined in |
2892 | XCOFF files. This is a convenient place to mark them. */ | |
2893 | if (xcoff_hash_table (ldinfo->info)->gc | |
2894 | && (h->flags & XCOFF_MARK) == 0 | |
2895 | && (h->root.type == bfd_link_hash_defined | |
2896 | || h->root.type == bfd_link_hash_defweak) | |
2897 | && (h->root.u.def.section->owner == NULL | |
2898 | || (h->root.u.def.section->owner->xvec | |
f13a99db | 2899 | != ldinfo->info->output_bfd->xvec))) |
116c20d2 NC |
2900 | h->flags |= XCOFF_MARK; |
2901 | ||
116c20d2 NC |
2902 | /* If this symbol is exported, but not defined, we need to try to |
2903 | define it. */ | |
2904 | if ((h->flags & XCOFF_EXPORT) != 0 | |
858ef0ce | 2905 | && (h->flags & XCOFF_WAS_UNDEFINED) != 0) |
116c20d2 | 2906 | { |
858ef0ce RS |
2907 | (*_bfd_error_handler) |
2908 | (_("warning: attempt to export undefined symbol `%s'"), | |
2909 | h->root.root.string); | |
2910 | h->ldsym = NULL; | |
2911 | return TRUE; | |
252b5132 RH |
2912 | } |
2913 | ||
116c20d2 NC |
2914 | /* If this is still a common symbol, and it wasn't garbage |
2915 | collected, we need to actually allocate space for it in the .bss | |
2916 | section. */ | |
2917 | if (h->root.type == bfd_link_hash_common | |
2918 | && (! xcoff_hash_table (ldinfo->info)->gc | |
2919 | || (h->flags & XCOFF_MARK) != 0) | |
2920 | && h->root.u.c.p->section->size == 0) | |
252b5132 | 2921 | { |
116c20d2 NC |
2922 | BFD_ASSERT (bfd_is_com_section (h->root.u.c.p->section)); |
2923 | h->root.u.c.p->section->size = h->root.u.c.size; | |
252b5132 RH |
2924 | } |
2925 | ||
116c20d2 NC |
2926 | /* We need to add a symbol to the .loader section if it is mentioned |
2927 | in a reloc which we are copying to the .loader section and it was | |
2928 | not defined or common, or if it is the entry point, or if it is | |
2929 | being exported. */ | |
252b5132 | 2930 | |
116c20d2 NC |
2931 | if (((h->flags & XCOFF_LDREL) == 0 |
2932 | || h->root.type == bfd_link_hash_defined | |
2933 | || h->root.type == bfd_link_hash_defweak | |
2934 | || h->root.type == bfd_link_hash_common) | |
2935 | && (h->flags & XCOFF_ENTRY) == 0 | |
2936 | && (h->flags & XCOFF_EXPORT) == 0) | |
252b5132 | 2937 | { |
116c20d2 NC |
2938 | h->ldsym = NULL; |
2939 | return TRUE; | |
252b5132 | 2940 | } |
116c20d2 NC |
2941 | |
2942 | /* We don't need to add this symbol if we did garbage collection and | |
2943 | we did not mark this symbol. */ | |
2944 | if (xcoff_hash_table (ldinfo->info)->gc | |
2945 | && (h->flags & XCOFF_MARK) == 0) | |
252b5132 | 2946 | { |
116c20d2 NC |
2947 | h->ldsym = NULL; |
2948 | return TRUE; | |
252b5132 RH |
2949 | } |
2950 | ||
116c20d2 NC |
2951 | /* We may have already processed this symbol due to the recursive |
2952 | call above. */ | |
2953 | if ((h->flags & XCOFF_BUILT_LDSYM) != 0) | |
2954 | return TRUE; | |
252b5132 | 2955 | |
116c20d2 NC |
2956 | /* We need to add this symbol to the .loader symbols. */ |
2957 | ||
2958 | BFD_ASSERT (h->ldsym == NULL); | |
2959 | amt = sizeof (struct internal_ldsym); | |
2960 | h->ldsym = bfd_zalloc (ldinfo->output_bfd, amt); | |
2961 | if (h->ldsym == NULL) | |
252b5132 | 2962 | { |
116c20d2 NC |
2963 | ldinfo->failed = TRUE; |
2964 | return FALSE; | |
2965 | } | |
252b5132 | 2966 | |
116c20d2 NC |
2967 | if ((h->flags & XCOFF_IMPORT) != 0) |
2968 | h->ldsym->l_ifile = h->ldindx; | |
252b5132 | 2969 | |
116c20d2 NC |
2970 | /* The first 3 symbol table indices are reserved to indicate the |
2971 | data, text and bss sections. */ | |
2972 | h->ldindx = ldinfo->ldsym_count + 3; | |
252b5132 | 2973 | |
116c20d2 | 2974 | ++ldinfo->ldsym_count; |
252b5132 | 2975 | |
116c20d2 NC |
2976 | if (! bfd_xcoff_put_ldsymbol_name (ldinfo->output_bfd, ldinfo, |
2977 | h->ldsym, h->root.root.string)) | |
2978 | return FALSE; | |
252b5132 | 2979 | |
116c20d2 | 2980 | h->flags |= XCOFF_BUILT_LDSYM; |
252b5132 | 2981 | |
116c20d2 NC |
2982 | return TRUE; |
2983 | } | |
2984 | /* Build the .loader section. This is called by the XCOFF linker | |
2985 | emulation before_allocation routine. We must set the size of the | |
2986 | .loader section before the linker lays out the output file. | |
2987 | LIBPATH is the library path to search for shared objects; this is | |
2988 | normally built from the -L arguments passed to the linker. ENTRY | |
2989 | is the name of the entry point symbol (the -e linker option). | |
2990 | FILE_ALIGN is the alignment to use for sections within the file | |
2991 | (the -H linker option). MAXSTACK is the maximum stack size (the | |
2992 | -bmaxstack linker option). MAXDATA is the maximum data size (the | |
2993 | -bmaxdata linker option). GC is whether to do garbage collection | |
2994 | (the -bgc linker option). MODTYPE is the module type (the | |
2995 | -bmodtype linker option). TEXTRO is whether the text section must | |
2996 | be read only (the -btextro linker option). EXPORT_DEFINEDS is | |
2997 | whether all defined symbols should be exported (the -unix linker | |
2998 | option). SPECIAL_SECTIONS is set by this routine to csects with | |
2999 | magic names like _end. */ | |
252b5132 | 3000 | |
116c20d2 NC |
3001 | bfd_boolean |
3002 | bfd_xcoff_size_dynamic_sections (bfd *output_bfd, | |
3003 | struct bfd_link_info *info, | |
3004 | const char *libpath, | |
3005 | const char *entry, | |
3006 | unsigned long file_align, | |
3007 | unsigned long maxstack, | |
3008 | unsigned long maxdata, | |
3009 | bfd_boolean gc, | |
3010 | int modtype, | |
3011 | bfd_boolean textro, | |
3012 | bfd_boolean export_defineds, | |
3013 | asection **special_sections, | |
3014 | bfd_boolean rtld) | |
3015 | { | |
3016 | struct xcoff_link_hash_entry *hentry; | |
3017 | asection *lsec; | |
3018 | struct xcoff_loader_info ldinfo; | |
3019 | int i; | |
3020 | size_t impsize, impcount; | |
3021 | struct xcoff_import_file *fl; | |
3022 | struct internal_ldhdr *ldhdr; | |
3023 | bfd_size_type stoff; | |
3024 | char *out; | |
3025 | asection *sec; | |
3026 | bfd *sub; | |
3027 | struct bfd_strtab_hash *debug_strtab; | |
3028 | bfd_byte *debug_contents = NULL; | |
3029 | bfd_size_type amt; | |
252b5132 | 3030 | |
116c20d2 NC |
3031 | if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) |
3032 | { | |
3033 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) | |
3034 | special_sections[i] = NULL; | |
3035 | return TRUE; | |
3036 | } | |
252b5132 | 3037 | |
116c20d2 NC |
3038 | ldinfo.failed = FALSE; |
3039 | ldinfo.output_bfd = output_bfd; | |
3040 | ldinfo.info = info; | |
3041 | ldinfo.export_defineds = export_defineds; | |
3042 | ldinfo.ldsym_count = 0; | |
3043 | ldinfo.string_size = 0; | |
3044 | ldinfo.strings = NULL; | |
3045 | ldinfo.string_alc = 0; | |
252b5132 | 3046 | |
116c20d2 NC |
3047 | xcoff_data (output_bfd)->maxstack = maxstack; |
3048 | xcoff_data (output_bfd)->maxdata = maxdata; | |
3049 | xcoff_data (output_bfd)->modtype = modtype; | |
eb1e0e80 | 3050 | |
116c20d2 NC |
3051 | xcoff_hash_table (info)->file_align = file_align; |
3052 | xcoff_hash_table (info)->textro = textro; | |
858ef0ce | 3053 | xcoff_hash_table (info)->rtld = rtld; |
252b5132 | 3054 | |
116c20d2 NC |
3055 | hentry = NULL; |
3056 | if (entry != NULL) | |
3057 | { | |
3058 | hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry, | |
3059 | FALSE, FALSE, TRUE); | |
3060 | if (hentry != NULL) | |
3061 | hentry->flags |= XCOFF_ENTRY; | |
3062 | } | |
252b5132 | 3063 | |
116c20d2 NC |
3064 | /* __rtinit */ |
3065 | if (info->init_function || info->fini_function || rtld) | |
3066 | { | |
3067 | struct xcoff_link_hash_entry *hsym; | |
3068 | struct internal_ldsym *ldsym; | |
252b5132 | 3069 | |
116c20d2 NC |
3070 | hsym = xcoff_link_hash_lookup (xcoff_hash_table (info), |
3071 | "__rtinit", FALSE, FALSE, TRUE); | |
3072 | if (hsym == NULL) | |
252b5132 | 3073 | { |
116c20d2 NC |
3074 | (*_bfd_error_handler) |
3075 | (_("error: undefined symbol __rtinit")); | |
3076 | return FALSE; | |
252b5132 | 3077 | } |
252b5132 | 3078 | |
116c20d2 NC |
3079 | xcoff_mark_symbol (info, hsym); |
3080 | hsym->flags |= (XCOFF_DEF_REGULAR | XCOFF_RTINIT); | |
252b5132 | 3081 | |
116c20d2 NC |
3082 | /* __rtinit initialized. */ |
3083 | amt = sizeof (* ldsym); | |
3084 | ldsym = bfd_malloc (amt); | |
252b5132 | 3085 | |
116c20d2 NC |
3086 | ldsym->l_value = 0; /* Will be filled in later. */ |
3087 | ldsym->l_scnum = 2; /* Data section. */ | |
3088 | ldsym->l_smtype = XTY_SD; /* Csect section definition. */ | |
3089 | ldsym->l_smclas = 5; /* .rw. */ | |
3090 | ldsym->l_ifile = 0; /* Special system loader symbol. */ | |
3091 | ldsym->l_parm = 0; /* NA. */ | |
252b5132 | 3092 | |
116c20d2 NC |
3093 | /* Force __rtinit to be the first symbol in the loader symbol table |
3094 | See xcoff_build_ldsyms | |
b34976b6 | 3095 | |
116c20d2 NC |
3096 | The first 3 symbol table indices are reserved to indicate the data, |
3097 | text and bss sections. */ | |
3098 | BFD_ASSERT (0 == ldinfo.ldsym_count); | |
9a4c7f16 | 3099 | |
116c20d2 NC |
3100 | hsym->ldindx = 3; |
3101 | ldinfo.ldsym_count = 1; | |
3102 | hsym->ldsym = ldsym; | |
9a4c7f16 | 3103 | |
116c20d2 NC |
3104 | if (! bfd_xcoff_put_ldsymbol_name (ldinfo.output_bfd, &ldinfo, |
3105 | hsym->ldsym, hsym->root.root.string)) | |
3106 | return FALSE; | |
9a4c7f16 | 3107 | |
116c20d2 NC |
3108 | /* This symbol is written out by xcoff_write_global_symbol |
3109 | Set stuff up so xcoff_write_global_symbol logic works. */ | |
3110 | hsym->flags |= XCOFF_DEF_REGULAR | XCOFF_MARK; | |
3111 | hsym->root.type = bfd_link_hash_defined; | |
3112 | hsym->root.u.def.value = 0; | |
3113 | } | |
9a4c7f16 | 3114 | |
116c20d2 NC |
3115 | /* Garbage collect unused sections. */ |
3116 | if (info->relocatable | |
3117 | || ! gc | |
3118 | || hentry == NULL | |
3119 | || (hentry->root.type != bfd_link_hash_defined | |
3120 | && hentry->root.type != bfd_link_hash_defweak)) | |
3121 | { | |
3122 | gc = FALSE; | |
3123 | xcoff_hash_table (info)->gc = FALSE; | |
9a4c7f16 | 3124 | |
116c20d2 NC |
3125 | /* We still need to call xcoff_mark, in order to set ldrel_count |
3126 | correctly. */ | |
3127 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
3128 | { | |
3129 | asection *o; | |
9a4c7f16 | 3130 | |
116c20d2 NC |
3131 | for (o = sub->sections; o != NULL; o = o->next) |
3132 | { | |
47dfb2ca RS |
3133 | /* We shouldn't unconditionaly mark the TOC section. |
3134 | The output file should only have a TOC if either | |
3135 | (a) one of the input files did or (b) we end up | |
3136 | creating TOC references as part of the link process. */ | |
3137 | if (o != xcoff_hash_table (info)->toc_section | |
3138 | && (o->flags & SEC_MARK) == 0) | |
116c20d2 NC |
3139 | { |
3140 | if (! xcoff_mark (info, o)) | |
3141 | goto error_return; | |
3142 | } | |
3143 | } | |
3144 | } | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | if (! xcoff_mark (info, hentry->root.u.def.section)) | |
3149 | goto error_return; | |
3150 | xcoff_sweep (info); | |
3151 | xcoff_hash_table (info)->gc = TRUE; | |
3152 | } | |
9a4c7f16 | 3153 | |
116c20d2 NC |
3154 | /* Return special sections to the caller. */ |
3155 | for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) | |
3156 | { | |
3157 | sec = xcoff_hash_table (info)->special_sections[i]; | |
252b5132 | 3158 | |
116c20d2 NC |
3159 | if (sec != NULL |
3160 | && gc | |
3161 | && (sec->flags & SEC_MARK) == 0) | |
3162 | sec = NULL; | |
252b5132 | 3163 | |
116c20d2 NC |
3164 | special_sections[i] = sec; |
3165 | } | |
e92d460e | 3166 | |
116c20d2 NC |
3167 | if (info->input_bfds == NULL) |
3168 | /* I'm not sure what to do in this bizarre case. */ | |
3169 | return TRUE; | |
dc810e39 | 3170 | |
116c20d2 NC |
3171 | xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_build_ldsyms, |
3172 | (void *) &ldinfo); | |
3173 | if (ldinfo.failed) | |
3174 | goto error_return; | |
252b5132 | 3175 | |
116c20d2 NC |
3176 | /* Work out the size of the import file names. Each import file ID |
3177 | consists of three null terminated strings: the path, the file | |
3178 | name, and the archive member name. The first entry in the list | |
3179 | of names is the path to use to find objects, which the linker has | |
3180 | passed in as the libpath argument. For some reason, the path | |
3181 | entry in the other import file names appears to always be empty. */ | |
3182 | impsize = strlen (libpath) + 3; | |
3183 | impcount = 1; | |
3184 | for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next) | |
252b5132 | 3185 | { |
116c20d2 NC |
3186 | ++impcount; |
3187 | impsize += (strlen (fl->path) | |
3188 | + strlen (fl->file) | |
3189 | + strlen (fl->member) | |
3190 | + 3); | |
3191 | } | |
252b5132 | 3192 | |
116c20d2 NC |
3193 | /* Set up the .loader section header. */ |
3194 | ldhdr = &xcoff_hash_table (info)->ldhdr; | |
3195 | ldhdr->l_version = bfd_xcoff_ldhdr_version(output_bfd); | |
3196 | ldhdr->l_nsyms = ldinfo.ldsym_count; | |
3197 | ldhdr->l_nreloc = xcoff_hash_table (info)->ldrel_count; | |
3198 | ldhdr->l_istlen = impsize; | |
3199 | ldhdr->l_nimpid = impcount; | |
3200 | ldhdr->l_impoff = (bfd_xcoff_ldhdrsz(output_bfd) | |
3201 | + ldhdr->l_nsyms * bfd_xcoff_ldsymsz(output_bfd) | |
3202 | + ldhdr->l_nreloc * bfd_xcoff_ldrelsz(output_bfd)); | |
3203 | ldhdr->l_stlen = ldinfo.string_size; | |
3204 | stoff = ldhdr->l_impoff + impsize; | |
3205 | if (ldinfo.string_size == 0) | |
3206 | ldhdr->l_stoff = 0; | |
3207 | else | |
3208 | ldhdr->l_stoff = stoff; | |
252b5132 | 3209 | |
116c20d2 NC |
3210 | /* 64 bit elements to ldhdr |
3211 | The swap out routine for 32 bit will ignore them. | |
3212 | Nothing fancy, symbols come after the header and relocs come | |
3213 | after symbols. */ | |
3214 | ldhdr->l_symoff = bfd_xcoff_ldhdrsz (output_bfd); | |
3215 | ldhdr->l_rldoff = (bfd_xcoff_ldhdrsz (output_bfd) | |
3216 | + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (output_bfd)); | |
252b5132 | 3217 | |
116c20d2 NC |
3218 | /* We now know the final size of the .loader section. Allocate |
3219 | space for it. */ | |
3220 | lsec = xcoff_hash_table (info)->loader_section; | |
3221 | lsec->size = stoff + ldhdr->l_stlen; | |
3222 | lsec->contents = bfd_zalloc (output_bfd, lsec->size); | |
3223 | if (lsec->contents == NULL) | |
3224 | goto error_return; | |
252b5132 | 3225 | |
116c20d2 NC |
3226 | /* Set up the header. */ |
3227 | bfd_xcoff_swap_ldhdr_out (output_bfd, ldhdr, lsec->contents); | |
252b5132 | 3228 | |
116c20d2 NC |
3229 | /* Set up the import file names. */ |
3230 | out = (char *) lsec->contents + ldhdr->l_impoff; | |
3231 | strcpy (out, libpath); | |
3232 | out += strlen (libpath) + 1; | |
3233 | *out++ = '\0'; | |
3234 | *out++ = '\0'; | |
3235 | for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next) | |
252b5132 | 3236 | { |
116c20d2 | 3237 | const char *s; |
252b5132 | 3238 | |
116c20d2 NC |
3239 | s = fl->path; |
3240 | while ((*out++ = *s++) != '\0') | |
3241 | ; | |
3242 | s = fl->file; | |
3243 | while ((*out++ = *s++) != '\0') | |
3244 | ; | |
3245 | s = fl->member; | |
3246 | while ((*out++ = *s++) != '\0') | |
3247 | ; | |
3248 | } | |
252b5132 | 3249 | |
116c20d2 | 3250 | BFD_ASSERT ((bfd_size_type) ((bfd_byte *) out - lsec->contents) == stoff); |
beb1bf64 | 3251 | |
116c20d2 NC |
3252 | /* Set up the symbol string table. */ |
3253 | if (ldinfo.string_size > 0) | |
3254 | { | |
3255 | memcpy (out, ldinfo.strings, ldinfo.string_size); | |
3256 | free (ldinfo.strings); | |
3257 | ldinfo.strings = NULL; | |
3258 | } | |
dc810e39 | 3259 | |
116c20d2 NC |
3260 | /* We can't set up the symbol table or the relocs yet, because we |
3261 | don't yet know the final position of the various sections. The | |
3262 | .loader symbols are written out when the corresponding normal | |
3263 | symbols are written out in xcoff_link_input_bfd or | |
3264 | xcoff_write_global_symbol. The .loader relocs are written out | |
3265 | when the corresponding normal relocs are handled in | |
3266 | xcoff_link_input_bfd. */ | |
dc810e39 | 3267 | |
116c20d2 NC |
3268 | /* Allocate space for the magic sections. */ |
3269 | sec = xcoff_hash_table (info)->linkage_section; | |
3270 | if (sec->size > 0) | |
3271 | { | |
3272 | sec->contents = bfd_zalloc (output_bfd, sec->size); | |
3273 | if (sec->contents == NULL) | |
3274 | goto error_return; | |
252b5132 | 3275 | } |
116c20d2 NC |
3276 | sec = xcoff_hash_table (info)->toc_section; |
3277 | if (sec->size > 0) | |
252b5132 | 3278 | { |
116c20d2 NC |
3279 | sec->contents = bfd_zalloc (output_bfd, sec->size); |
3280 | if (sec->contents == NULL) | |
3281 | goto error_return; | |
3282 | } | |
3283 | sec = xcoff_hash_table (info)->descriptor_section; | |
3284 | if (sec->size > 0) | |
3285 | { | |
3286 | sec->contents = bfd_zalloc (output_bfd, sec->size); | |
3287 | if (sec->contents == NULL) | |
3288 | goto error_return; | |
3289 | } | |
252b5132 | 3290 | |
116c20d2 NC |
3291 | /* Now that we've done garbage collection, figure out the contents |
3292 | of the .debug section. */ | |
3293 | debug_strtab = xcoff_hash_table (info)->debug_strtab; | |
252b5132 | 3294 | |
116c20d2 NC |
3295 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) |
3296 | { | |
3297 | asection *subdeb; | |
3298 | bfd_size_type symcount; | |
3299 | unsigned long *debug_index; | |
3300 | asection **csectpp; | |
3301 | bfd_byte *esym, *esymend; | |
3302 | bfd_size_type symesz; | |
beb1bf64 | 3303 | |
f13a99db | 3304 | if (sub->xvec != info->output_bfd->xvec) |
116c20d2 NC |
3305 | continue; |
3306 | subdeb = bfd_get_section_by_name (sub, ".debug"); | |
3307 | if (subdeb == NULL || subdeb->size == 0) | |
3308 | continue; | |
252b5132 | 3309 | |
116c20d2 NC |
3310 | if (info->strip == strip_all |
3311 | || info->strip == strip_debugger | |
3312 | || info->discard == discard_all) | |
252b5132 | 3313 | { |
116c20d2 NC |
3314 | subdeb->size = 0; |
3315 | continue; | |
252b5132 | 3316 | } |
252b5132 | 3317 | |
116c20d2 NC |
3318 | if (! _bfd_coff_get_external_symbols (sub)) |
3319 | goto error_return; | |
252b5132 | 3320 | |
116c20d2 NC |
3321 | symcount = obj_raw_syment_count (sub); |
3322 | debug_index = bfd_zalloc (sub, symcount * sizeof (unsigned long)); | |
3323 | if (debug_index == NULL) | |
3324 | goto error_return; | |
3325 | xcoff_data (sub)->debug_indices = debug_index; | |
252b5132 | 3326 | |
116c20d2 NC |
3327 | /* Grab the contents of the .debug section. We use malloc and |
3328 | copy the names into the debug stringtab, rather than | |
3329 | bfd_alloc, because I expect that, when linking many files | |
3330 | together, many of the strings will be the same. Storing the | |
3331 | strings in the hash table should save space in this case. */ | |
3332 | if (! bfd_malloc_and_get_section (sub, subdeb, &debug_contents)) | |
3333 | goto error_return; | |
252b5132 | 3334 | |
116c20d2 | 3335 | csectpp = xcoff_data (sub)->csects; |
252b5132 | 3336 | |
116c20d2 NC |
3337 | /* Dynamic object do not have csectpp's. */ |
3338 | if (NULL != csectpp) | |
3339 | { | |
3340 | symesz = bfd_coff_symesz (sub); | |
3341 | esym = (bfd_byte *) obj_coff_external_syms (sub); | |
3342 | esymend = esym + symcount * symesz; | |
252b5132 | 3343 | |
116c20d2 NC |
3344 | while (esym < esymend) |
3345 | { | |
3346 | struct internal_syment sym; | |
252b5132 | 3347 | |
116c20d2 | 3348 | bfd_coff_swap_sym_in (sub, (void *) esym, (void *) &sym); |
252b5132 | 3349 | |
116c20d2 | 3350 | *debug_index = (unsigned long) -1; |
252b5132 | 3351 | |
116c20d2 NC |
3352 | if (sym._n._n_n._n_zeroes == 0 |
3353 | && *csectpp != NULL | |
3354 | && (! gc | |
4cc02a02 RS |
3355 | || bfd_is_abs_section (*csectpp) |
3356 | || bfd_is_und_section (*csectpp) | |
3357 | || ((*csectpp)->flags & SEC_MARK) != 0) | |
116c20d2 NC |
3358 | && bfd_coff_symname_in_debug (sub, &sym)) |
3359 | { | |
3360 | char *name; | |
3361 | bfd_size_type indx; | |
252b5132 | 3362 | |
116c20d2 NC |
3363 | name = (char *) debug_contents + sym._n._n_n._n_offset; |
3364 | indx = _bfd_stringtab_add (debug_strtab, name, TRUE, TRUE); | |
3365 | if (indx == (bfd_size_type) -1) | |
3366 | goto error_return; | |
3367 | *debug_index = indx; | |
3368 | } | |
252b5132 | 3369 | |
116c20d2 NC |
3370 | esym += (sym.n_numaux + 1) * symesz; |
3371 | csectpp += sym.n_numaux + 1; | |
3372 | debug_index += sym.n_numaux + 1; | |
3373 | } | |
3374 | } | |
3375 | ||
3376 | free (debug_contents); | |
3377 | debug_contents = NULL; | |
3378 | ||
3379 | /* Clear the size of subdeb, so that it is not included directly | |
3380 | in the output file. */ | |
3381 | subdeb->size = 0; | |
3382 | ||
3383 | if (! info->keep_memory) | |
3384 | { | |
3385 | if (! _bfd_coff_free_symbols (sub)) | |
3386 | goto error_return; | |
3387 | } | |
dc810e39 | 3388 | } |
252b5132 | 3389 | |
116c20d2 NC |
3390 | if (info->strip != strip_all) |
3391 | xcoff_hash_table (info)->debug_section->size = | |
3392 | _bfd_stringtab_size (debug_strtab); | |
252b5132 | 3393 | |
b34976b6 | 3394 | return TRUE; |
116c20d2 NC |
3395 | |
3396 | error_return: | |
3397 | if (ldinfo.strings != NULL) | |
3398 | free (ldinfo.strings); | |
3399 | if (debug_contents != NULL) | |
3400 | free (debug_contents); | |
3401 | return FALSE; | |
252b5132 | 3402 | } |
252b5132 | 3403 | |
b34976b6 | 3404 | bfd_boolean |
116c20d2 NC |
3405 | bfd_xcoff_link_generate_rtinit (bfd *abfd, |
3406 | const char *init, | |
3407 | const char *fini, | |
3408 | bfd_boolean rtld) | |
252b5132 | 3409 | { |
116c20d2 | 3410 | struct bfd_in_memory *bim; |
252b5132 | 3411 | |
116c20d2 NC |
3412 | bim = bfd_malloc ((bfd_size_type) sizeof (* bim)); |
3413 | if (bim == NULL) | |
3414 | return FALSE; | |
252b5132 | 3415 | |
116c20d2 NC |
3416 | bim->size = 0; |
3417 | bim->buffer = 0; | |
252b5132 | 3418 | |
116c20d2 NC |
3419 | abfd->link_next = 0; |
3420 | abfd->format = bfd_object; | |
3421 | abfd->iostream = (void *) bim; | |
3422 | abfd->flags = BFD_IN_MEMORY; | |
3423 | abfd->direction = write_direction; | |
3424 | abfd->where = 0; | |
252b5132 | 3425 | |
116c20d2 NC |
3426 | if (! bfd_xcoff_generate_rtinit (abfd, init, fini, rtld)) |
3427 | return FALSE; | |
252b5132 | 3428 | |
116c20d2 NC |
3429 | /* need to reset to unknown or it will not be read back in correctly */ |
3430 | abfd->format = bfd_unknown; | |
3431 | abfd->direction = read_direction; | |
3432 | abfd->where = 0; | |
252b5132 | 3433 | |
116c20d2 NC |
3434 | return TRUE; |
3435 | } | |
3436 | \f | |
3437 | /* Link an input file into the linker output file. This function | |
3438 | handles all the sections and relocations of the input file at once. */ | |
252b5132 | 3439 | |
116c20d2 NC |
3440 | static bfd_boolean |
3441 | xcoff_link_input_bfd (struct xcoff_final_link_info *finfo, | |
3442 | bfd *input_bfd) | |
3443 | { | |
3444 | bfd *output_bfd; | |
3445 | const char *strings; | |
3446 | bfd_size_type syment_base; | |
3447 | unsigned int n_tmask; | |
3448 | unsigned int n_btshft; | |
3449 | bfd_boolean copy, hash; | |
3450 | bfd_size_type isymesz; | |
3451 | bfd_size_type osymesz; | |
3452 | bfd_size_type linesz; | |
3453 | bfd_byte *esym; | |
3454 | bfd_byte *esym_end; | |
3455 | struct xcoff_link_hash_entry **sym_hash; | |
3456 | struct internal_syment *isymp; | |
3457 | asection **csectpp; | |
3458 | unsigned long *debug_index; | |
3459 | long *indexp; | |
3460 | unsigned long output_index; | |
3461 | bfd_byte *outsym; | |
3462 | unsigned int incls; | |
3463 | asection *oline; | |
3464 | bfd_boolean keep_syms; | |
3465 | asection *o; | |
252b5132 | 3466 | |
116c20d2 NC |
3467 | /* We can just skip DYNAMIC files, unless this is a static link. */ |
3468 | if ((input_bfd->flags & DYNAMIC) != 0 | |
3469 | && ! finfo->info->static_link) | |
3470 | return TRUE; | |
252b5132 | 3471 | |
116c20d2 NC |
3472 | /* Move all the symbols to the output file. */ |
3473 | output_bfd = finfo->output_bfd; | |
3474 | strings = NULL; | |
3475 | syment_base = obj_raw_syment_count (output_bfd); | |
3476 | isymesz = bfd_coff_symesz (input_bfd); | |
3477 | osymesz = bfd_coff_symesz (output_bfd); | |
3478 | linesz = bfd_coff_linesz (input_bfd); | |
3479 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
252b5132 | 3480 | |
116c20d2 NC |
3481 | n_tmask = coff_data (input_bfd)->local_n_tmask; |
3482 | n_btshft = coff_data (input_bfd)->local_n_btshft; | |
252b5132 | 3483 | |
116c20d2 NC |
3484 | /* Define macros so that ISFCN, et. al., macros work correctly. */ |
3485 | #define N_TMASK n_tmask | |
3486 | #define N_BTSHFT n_btshft | |
252b5132 | 3487 | |
116c20d2 NC |
3488 | copy = FALSE; |
3489 | if (! finfo->info->keep_memory) | |
3490 | copy = TRUE; | |
3491 | hash = TRUE; | |
3492 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
3493 | hash = FALSE; | |
252b5132 | 3494 | |
116c20d2 NC |
3495 | if (! _bfd_coff_get_external_symbols (input_bfd)) |
3496 | return FALSE; | |
3497 | ||
3498 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
3499 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
3500 | sym_hash = obj_xcoff_sym_hashes (input_bfd); | |
3501 | csectpp = xcoff_data (input_bfd)->csects; | |
3502 | debug_index = xcoff_data (input_bfd)->debug_indices; | |
3503 | isymp = finfo->internal_syms; | |
3504 | indexp = finfo->sym_indices; | |
3505 | output_index = syment_base; | |
3506 | outsym = finfo->outsyms; | |
3507 | incls = 0; | |
3508 | oline = NULL; | |
3509 | ||
3510 | while (esym < esym_end) | |
252b5132 | 3511 | { |
116c20d2 NC |
3512 | struct internal_syment isym; |
3513 | union internal_auxent aux; | |
3514 | int smtyp = 0; | |
3515 | bfd_boolean skip; | |
116c20d2 | 3516 | int add; |
252b5132 | 3517 | |
116c20d2 | 3518 | bfd_coff_swap_sym_in (input_bfd, (void *) esym, (void *) isymp); |
b34976b6 | 3519 | |
116c20d2 NC |
3520 | /* If this is a C_EXT or C_HIDEXT symbol, we need the csect |
3521 | information. */ | |
3522 | if (isymp->n_sclass == C_EXT || isymp->n_sclass == C_HIDEXT) | |
3523 | { | |
3524 | BFD_ASSERT (isymp->n_numaux > 0); | |
3525 | bfd_coff_swap_aux_in (input_bfd, | |
3526 | (void *) (esym + isymesz * isymp->n_numaux), | |
3527 | isymp->n_type, isymp->n_sclass, | |
3528 | isymp->n_numaux - 1, isymp->n_numaux, | |
3529 | (void *) &aux); | |
b34976b6 | 3530 | |
116c20d2 NC |
3531 | smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); |
3532 | } | |
b34976b6 | 3533 | |
116c20d2 NC |
3534 | /* Make a copy of *isymp so that the relocate_section function |
3535 | always sees the original values. This is more reliable than | |
3536 | always recomputing the symbol value even if we are stripping | |
3537 | the symbol. */ | |
3538 | isym = *isymp; | |
04b5af89 | 3539 | |
116c20d2 NC |
3540 | /* If this symbol is in the .loader section, swap out the |
3541 | .loader symbol information. If this is an external symbol | |
3542 | reference to a defined symbol, though, then wait until we get | |
3543 | to the definition. */ | |
3544 | if (isym.n_sclass == C_EXT | |
3545 | && *sym_hash != NULL | |
3546 | && (*sym_hash)->ldsym != NULL | |
3547 | && (smtyp != XTY_ER | |
3548 | || (*sym_hash)->root.type == bfd_link_hash_undefined)) | |
3549 | { | |
3550 | struct xcoff_link_hash_entry *h; | |
3551 | struct internal_ldsym *ldsym; | |
9e7b37b3 | 3552 | |
116c20d2 NC |
3553 | h = *sym_hash; |
3554 | ldsym = h->ldsym; | |
3555 | if (isym.n_scnum > 0) | |
3556 | { | |
3557 | ldsym->l_scnum = (*csectpp)->output_section->target_index; | |
3558 | ldsym->l_value = (isym.n_value | |
3559 | + (*csectpp)->output_section->vma | |
3560 | + (*csectpp)->output_offset | |
3561 | - (*csectpp)->vma); | |
252b5132 | 3562 | } |
116c20d2 | 3563 | else |
252b5132 | 3564 | { |
116c20d2 NC |
3565 | ldsym->l_scnum = isym.n_scnum; |
3566 | ldsym->l_value = isym.n_value; | |
252b5132 | 3567 | } |
252b5132 | 3568 | |
116c20d2 NC |
3569 | ldsym->l_smtype = smtyp; |
3570 | if (((h->flags & XCOFF_DEF_REGULAR) == 0 | |
3571 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
3572 | || (h->flags & XCOFF_IMPORT) != 0) | |
3573 | ldsym->l_smtype |= L_IMPORT; | |
3574 | if (((h->flags & XCOFF_DEF_REGULAR) != 0 | |
3575 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
3576 | || (h->flags & XCOFF_EXPORT) != 0) | |
3577 | ldsym->l_smtype |= L_EXPORT; | |
3578 | if ((h->flags & XCOFF_ENTRY) != 0) | |
3579 | ldsym->l_smtype |= L_ENTRY; | |
dc810e39 | 3580 | |
116c20d2 NC |
3581 | ldsym->l_smclas = aux.x_csect.x_smclas; |
3582 | ||
3583 | if (ldsym->l_ifile == (bfd_size_type) -1) | |
3584 | ldsym->l_ifile = 0; | |
3585 | else if (ldsym->l_ifile == 0) | |
252b5132 | 3586 | { |
116c20d2 NC |
3587 | if ((ldsym->l_smtype & L_IMPORT) == 0) |
3588 | ldsym->l_ifile = 0; | |
3589 | else | |
252b5132 | 3590 | { |
116c20d2 | 3591 | bfd *impbfd; |
252b5132 | 3592 | |
116c20d2 NC |
3593 | if (h->root.type == bfd_link_hash_defined |
3594 | || h->root.type == bfd_link_hash_defweak) | |
3595 | impbfd = h->root.u.def.section->owner; | |
3596 | else if (h->root.type == bfd_link_hash_undefined | |
3597 | || h->root.type == bfd_link_hash_undefweak) | |
3598 | impbfd = h->root.u.undef.abfd; | |
3599 | else | |
3600 | impbfd = NULL; | |
3601 | ||
3602 | if (impbfd == NULL) | |
3603 | ldsym->l_ifile = 0; | |
3604 | else | |
252b5132 | 3605 | { |
116c20d2 NC |
3606 | BFD_ASSERT (impbfd->xvec == finfo->output_bfd->xvec); |
3607 | ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; | |
252b5132 RH |
3608 | } |
3609 | } | |
116c20d2 NC |
3610 | } |
3611 | ||
3612 | ldsym->l_parm = 0; | |
3613 | ||
3614 | BFD_ASSERT (h->ldindx >= 0); | |
3615 | bfd_xcoff_swap_ldsym_out (finfo->output_bfd, ldsym, | |
3616 | (finfo->ldsym | |
3617 | + ((h->ldindx - 3) | |
3618 | * bfd_xcoff_ldsymsz (finfo->output_bfd)))); | |
3619 | h->ldsym = NULL; | |
3620 | ||
3621 | /* Fill in snentry now that we know the target_index. */ | |
3622 | if ((h->flags & XCOFF_ENTRY) != 0 | |
3623 | && (h->root.type == bfd_link_hash_defined | |
3624 | || h->root.type == bfd_link_hash_defweak)) | |
3625 | { | |
3626 | xcoff_data (output_bfd)->snentry = | |
3627 | h->root.u.def.section->output_section->target_index; | |
252b5132 RH |
3628 | } |
3629 | } | |
3630 | ||
116c20d2 | 3631 | *indexp = -1; |
252b5132 | 3632 | |
116c20d2 | 3633 | skip = FALSE; |
116c20d2 | 3634 | add = 1 + isym.n_numaux; |
252b5132 | 3635 | |
116c20d2 NC |
3636 | /* If we are skipping this csect, we want to skip this symbol. */ |
3637 | if (*csectpp == NULL) | |
3638 | skip = TRUE; | |
252b5132 | 3639 | |
116c20d2 NC |
3640 | /* If we garbage collected this csect, we want to skip this |
3641 | symbol. */ | |
3642 | if (! skip | |
3643 | && xcoff_hash_table (finfo->info)->gc | |
4cc02a02 RS |
3644 | && !bfd_is_abs_section (*csectpp) |
3645 | && !bfd_is_und_section (*csectpp) | |
3646 | && ((*csectpp)->flags & SEC_MARK) == 0) | |
116c20d2 NC |
3647 | skip = TRUE; |
3648 | ||
3649 | /* An XCOFF linker always skips C_STAT symbols. */ | |
3650 | if (! skip | |
3651 | && isymp->n_sclass == C_STAT) | |
3652 | skip = TRUE; | |
3653 | ||
47dfb2ca | 3654 | /* We generate the TOC anchor separately. */ |
116c20d2 NC |
3655 | if (! skip |
3656 | && isymp->n_sclass == C_HIDEXT | |
3657 | && aux.x_csect.x_smclas == XMC_TC0) | |
47dfb2ca | 3658 | skip = TRUE; |
252b5132 | 3659 | |
116c20d2 NC |
3660 | /* If we are stripping all symbols, we want to skip this one. */ |
3661 | if (! skip | |
3662 | && finfo->info->strip == strip_all) | |
3663 | skip = TRUE; | |
252b5132 | 3664 | |
116c20d2 NC |
3665 | /* We can skip resolved external references. */ |
3666 | if (! skip | |
3667 | && isym.n_sclass == C_EXT | |
3668 | && smtyp == XTY_ER | |
3669 | && (*sym_hash)->root.type != bfd_link_hash_undefined) | |
3670 | skip = TRUE; | |
dc810e39 | 3671 | |
116c20d2 NC |
3672 | /* We can skip common symbols if they got defined somewhere |
3673 | else. */ | |
3674 | if (! skip | |
3675 | && isym.n_sclass == C_EXT | |
3676 | && smtyp == XTY_CM | |
3677 | && ((*sym_hash)->root.type != bfd_link_hash_common | |
3678 | || (*sym_hash)->root.u.c.p->section != *csectpp) | |
3679 | && ((*sym_hash)->root.type != bfd_link_hash_defined | |
3680 | || (*sym_hash)->root.u.def.section != *csectpp)) | |
3681 | skip = TRUE; | |
dc810e39 | 3682 | |
116c20d2 NC |
3683 | /* Skip local symbols if we are discarding them. */ |
3684 | if (! skip | |
3685 | && finfo->info->discard == discard_all | |
3686 | && isym.n_sclass != C_EXT | |
3687 | && (isym.n_sclass != C_HIDEXT | |
3688 | || smtyp != XTY_SD)) | |
3689 | skip = TRUE; | |
dc810e39 | 3690 | |
116c20d2 NC |
3691 | /* If we stripping debugging symbols, and this is a debugging |
3692 | symbol, then skip it. */ | |
3693 | if (! skip | |
3694 | && finfo->info->strip == strip_debugger | |
3695 | && isym.n_scnum == N_DEBUG) | |
3696 | skip = TRUE; | |
dc810e39 | 3697 | |
116c20d2 NC |
3698 | /* If some symbols are stripped based on the name, work out the |
3699 | name and decide whether to skip this symbol. We don't handle | |
3700 | this correctly for symbols whose names are in the .debug | |
3701 | section; to get it right we would need a new bfd_strtab_hash | |
3702 | function to return the string given the index. */ | |
3703 | if (! skip | |
3704 | && (finfo->info->strip == strip_some | |
3705 | || finfo->info->discard == discard_l) | |
3706 | && (debug_index == NULL || *debug_index == (unsigned long) -1)) | |
3707 | { | |
3708 | const char *name; | |
3709 | char buf[SYMNMLEN + 1]; | |
dc810e39 | 3710 | |
116c20d2 | 3711 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); |
dc810e39 | 3712 | |
116c20d2 NC |
3713 | if (name == NULL) |
3714 | return FALSE; | |
252b5132 | 3715 | |
116c20d2 NC |
3716 | if ((finfo->info->strip == strip_some |
3717 | && (bfd_hash_lookup (finfo->info->keep_hash, name, FALSE, | |
3718 | FALSE) == NULL)) | |
3719 | || (finfo->info->discard == discard_l | |
3720 | && (isym.n_sclass != C_EXT | |
3721 | && (isym.n_sclass != C_HIDEXT | |
3722 | || smtyp != XTY_SD)) | |
3723 | && bfd_is_local_label_name (input_bfd, name))) | |
3724 | skip = TRUE; | |
3725 | } | |
252b5132 | 3726 | |
116c20d2 NC |
3727 | /* We now know whether we are to skip this symbol or not. */ |
3728 | if (! skip) | |
252b5132 | 3729 | { |
116c20d2 NC |
3730 | /* Adjust the symbol in order to output it. */ |
3731 | ||
3732 | if (isym._n._n_n._n_zeroes == 0 | |
3733 | && isym._n._n_n._n_offset != 0) | |
252b5132 | 3734 | { |
116c20d2 NC |
3735 | /* This symbol has a long name. Enter it in the string |
3736 | table we are building. If *debug_index != -1, the | |
3737 | name has already been entered in the .debug section. */ | |
3738 | if (debug_index != NULL && *debug_index != (unsigned long) -1) | |
3739 | isym._n._n_n._n_offset = *debug_index; | |
3740 | else | |
3741 | { | |
3742 | const char *name; | |
3743 | bfd_size_type indx; | |
3744 | ||
3745 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL); | |
3746 | ||
3747 | if (name == NULL) | |
3748 | return FALSE; | |
3749 | indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); | |
3750 | if (indx == (bfd_size_type) -1) | |
3751 | return FALSE; | |
3752 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
252b5132 RH |
3753 | } |
3754 | } | |
116c20d2 NC |
3755 | |
3756 | if (isym.n_sclass != C_BSTAT | |
3757 | && isym.n_sclass != C_ESTAT | |
3758 | && isym.n_sclass != C_DECL | |
3759 | && isym.n_scnum > 0) | |
252b5132 | 3760 | { |
116c20d2 NC |
3761 | isym.n_scnum = (*csectpp)->output_section->target_index; |
3762 | isym.n_value += ((*csectpp)->output_section->vma | |
3763 | + (*csectpp)->output_offset | |
3764 | - (*csectpp)->vma); | |
252b5132 | 3765 | } |
beb1bf64 | 3766 | |
116c20d2 NC |
3767 | /* The value of a C_FILE symbol is the symbol index of the |
3768 | next C_FILE symbol. The value of the last C_FILE symbol | |
3769 | is -1. We try to get this right, below, just before we | |
3770 | write the symbols out, but in the general case we may | |
3771 | have to write the symbol out twice. */ | |
3772 | if (isym.n_sclass == C_FILE) | |
3773 | { | |
3774 | if (finfo->last_file_index != -1 | |
3775 | && finfo->last_file.n_value != (bfd_vma) output_index) | |
3776 | { | |
3777 | /* We must correct the value of the last C_FILE entry. */ | |
3778 | finfo->last_file.n_value = output_index; | |
3779 | if ((bfd_size_type) finfo->last_file_index >= syment_base) | |
3780 | { | |
3781 | /* The last C_FILE symbol is in this input file. */ | |
3782 | bfd_coff_swap_sym_out (output_bfd, | |
3783 | (void *) &finfo->last_file, | |
3784 | (void *) (finfo->outsyms | |
3785 | + ((finfo->last_file_index | |
3786 | - syment_base) | |
3787 | * osymesz))); | |
3788 | } | |
3789 | else | |
3790 | { | |
3791 | /* We have already written out the last C_FILE | |
3792 | symbol. We need to write it out again. We | |
3793 | borrow *outsym temporarily. */ | |
3794 | file_ptr pos; | |
252b5132 | 3795 | |
116c20d2 NC |
3796 | bfd_coff_swap_sym_out (output_bfd, |
3797 | (void *) &finfo->last_file, | |
3798 | (void *) outsym); | |
beb1bf64 | 3799 | |
116c20d2 NC |
3800 | pos = obj_sym_filepos (output_bfd); |
3801 | pos += finfo->last_file_index * osymesz; | |
3802 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
3803 | || (bfd_bwrite (outsym, osymesz, output_bfd) | |
3804 | != osymesz)) | |
3805 | return FALSE; | |
3806 | } | |
3807 | } | |
252b5132 | 3808 | |
116c20d2 NC |
3809 | finfo->last_file_index = output_index; |
3810 | finfo->last_file = isym; | |
3811 | } | |
252b5132 | 3812 | |
116c20d2 NC |
3813 | /* The value of a C_BINCL or C_EINCL symbol is a file offset |
3814 | into the line numbers. We update the symbol values when | |
3815 | we handle the line numbers. */ | |
3816 | if (isym.n_sclass == C_BINCL | |
3817 | || isym.n_sclass == C_EINCL) | |
3818 | { | |
3819 | isym.n_value = finfo->line_filepos; | |
3820 | ++incls; | |
3821 | } | |
252b5132 | 3822 | |
116c20d2 | 3823 | /* Output the symbol. */ |
dc810e39 | 3824 | |
116c20d2 | 3825 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); |
252b5132 | 3826 | |
116c20d2 | 3827 | *indexp = output_index; |
252b5132 | 3828 | |
116c20d2 | 3829 | if (isym.n_sclass == C_EXT) |
dc810e39 | 3830 | { |
116c20d2 NC |
3831 | long indx; |
3832 | struct xcoff_link_hash_entry *h; | |
3833 | ||
3834 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
3835 | / isymesz); | |
3836 | h = obj_xcoff_sym_hashes (input_bfd)[indx]; | |
3837 | BFD_ASSERT (h != NULL); | |
3838 | h->indx = output_index; | |
dc810e39 | 3839 | } |
beb1bf64 | 3840 | |
116c20d2 NC |
3841 | /* If this is a symbol in the TOC which we may have merged |
3842 | (class XMC_TC), remember the symbol index of the TOC | |
3843 | symbol. */ | |
3844 | if (isym.n_sclass == C_HIDEXT | |
3845 | && aux.x_csect.x_smclas == XMC_TC | |
3846 | && *sym_hash != NULL) | |
dc810e39 | 3847 | { |
116c20d2 NC |
3848 | BFD_ASSERT (((*sym_hash)->flags & XCOFF_SET_TOC) == 0); |
3849 | BFD_ASSERT ((*sym_hash)->toc_section != NULL); | |
3850 | (*sym_hash)->u.toc_indx = output_index; | |
dc810e39 | 3851 | } |
dc810e39 | 3852 | |
116c20d2 NC |
3853 | output_index += add; |
3854 | outsym += add * osymesz; | |
3855 | } | |
dc810e39 | 3856 | |
116c20d2 NC |
3857 | esym += add * isymesz; |
3858 | isymp += add; | |
3859 | csectpp += add; | |
3860 | sym_hash += add; | |
3861 | if (debug_index != NULL) | |
3862 | debug_index += add; | |
3863 | ++indexp; | |
3864 | for (--add; add > 0; --add) | |
3865 | *indexp++ = -1; | |
dc810e39 AM |
3866 | } |
3867 | ||
116c20d2 NC |
3868 | /* Fix up the aux entries and the C_BSTAT symbols. This must be |
3869 | done in a separate pass, because we don't know the correct symbol | |
3870 | indices until we have already decided which symbols we are going | |
3871 | to keep. */ | |
beb1bf64 | 3872 | |
116c20d2 NC |
3873 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); |
3874 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
3875 | isymp = finfo->internal_syms; | |
3876 | indexp = finfo->sym_indices; | |
3877 | csectpp = xcoff_data (input_bfd)->csects; | |
3878 | outsym = finfo->outsyms; | |
3879 | while (esym < esym_end) | |
dc810e39 | 3880 | { |
116c20d2 | 3881 | int add; |
252b5132 | 3882 | |
116c20d2 NC |
3883 | add = 1 + isymp->n_numaux; |
3884 | ||
3885 | if (*indexp < 0) | |
3886 | esym += add * isymesz; | |
3887 | else | |
dc810e39 | 3888 | { |
116c20d2 | 3889 | int i; |
252b5132 | 3890 | |
116c20d2 NC |
3891 | if (isymp->n_sclass == C_BSTAT) |
3892 | { | |
3893 | struct internal_syment isym; | |
252b5132 | 3894 | |
116c20d2 | 3895 | bfd_vma indx; |
252b5132 | 3896 | |
116c20d2 NC |
3897 | /* The value of a C_BSTAT symbol is the symbol table |
3898 | index of the containing csect. */ | |
3899 | bfd_coff_swap_sym_in (output_bfd, (void *) outsym, (void *) &isym); | |
3900 | indx = isym.n_value; | |
3901 | if (indx < obj_raw_syment_count (input_bfd)) | |
3902 | { | |
3903 | long symindx; | |
252b5132 | 3904 | |
116c20d2 NC |
3905 | symindx = finfo->sym_indices[indx]; |
3906 | if (symindx < 0) | |
3907 | isym.n_value = 0; | |
3908 | else | |
3909 | isym.n_value = symindx; | |
3910 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, | |
3911 | (void *) outsym); | |
3912 | } | |
3913 | } | |
dc810e39 | 3914 | |
116c20d2 NC |
3915 | esym += isymesz; |
3916 | outsym += osymesz; | |
dc810e39 | 3917 | |
116c20d2 NC |
3918 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) |
3919 | { | |
3920 | union internal_auxent aux; | |
dc810e39 | 3921 | |
116c20d2 NC |
3922 | bfd_coff_swap_aux_in (input_bfd, (void *) esym, isymp->n_type, |
3923 | isymp->n_sclass, i, isymp->n_numaux, | |
3924 | (void *) &aux); | |
252b5132 | 3925 | |
116c20d2 NC |
3926 | if (isymp->n_sclass == C_FILE) |
3927 | { | |
3928 | /* This is the file name (or some comment put in by | |
3929 | the compiler). If it is long, we must put it in | |
3930 | the string table. */ | |
3931 | if (aux.x_file.x_n.x_zeroes == 0 | |
3932 | && aux.x_file.x_n.x_offset != 0) | |
3933 | { | |
3934 | const char *filename; | |
3935 | bfd_size_type indx; | |
dc810e39 | 3936 | |
116c20d2 NC |
3937 | BFD_ASSERT (aux.x_file.x_n.x_offset |
3938 | >= STRING_SIZE_SIZE); | |
3939 | if (strings == NULL) | |
3940 | { | |
3941 | strings = _bfd_coff_read_string_table (input_bfd); | |
3942 | if (strings == NULL) | |
3943 | return FALSE; | |
3944 | } | |
3945 | filename = strings + aux.x_file.x_n.x_offset; | |
3946 | indx = _bfd_stringtab_add (finfo->strtab, filename, | |
3947 | hash, copy); | |
3948 | if (indx == (bfd_size_type) -1) | |
3949 | return FALSE; | |
3950 | aux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; | |
3951 | } | |
3952 | } | |
3953 | else if ((isymp->n_sclass == C_EXT | |
3954 | || isymp->n_sclass == C_HIDEXT) | |
3955 | && i + 1 == isymp->n_numaux) | |
3956 | { | |
dc810e39 | 3957 | |
116c20d2 NC |
3958 | /* We don't support type checking. I don't know if |
3959 | anybody does. */ | |
3960 | aux.x_csect.x_parmhash = 0; | |
3961 | /* I don't think anybody uses these fields, but we'd | |
3962 | better clobber them just in case. */ | |
3963 | aux.x_csect.x_stab = 0; | |
3964 | aux.x_csect.x_snstab = 0; | |
dc810e39 | 3965 | |
116c20d2 NC |
3966 | if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD) |
3967 | { | |
3968 | unsigned long indx; | |
252b5132 | 3969 | |
116c20d2 NC |
3970 | indx = aux.x_csect.x_scnlen.l; |
3971 | if (indx < obj_raw_syment_count (input_bfd)) | |
3972 | { | |
3973 | long symindx; | |
252b5132 | 3974 | |
116c20d2 NC |
3975 | symindx = finfo->sym_indices[indx]; |
3976 | if (symindx < 0) | |
3977 | { | |
3978 | aux.x_csect.x_scnlen.l = 0; | |
3979 | } | |
3980 | else | |
3981 | { | |
3982 | aux.x_csect.x_scnlen.l = symindx; | |
3983 | } | |
3984 | } | |
3985 | } | |
3986 | } | |
3987 | else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) | |
3988 | { | |
3989 | unsigned long indx; | |
252b5132 | 3990 | |
116c20d2 NC |
3991 | if (ISFCN (isymp->n_type) |
3992 | || ISTAG (isymp->n_sclass) | |
3993 | || isymp->n_sclass == C_BLOCK | |
3994 | || isymp->n_sclass == C_FCN) | |
3995 | { | |
3996 | indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
3997 | if (indx > 0 | |
3998 | && indx < obj_raw_syment_count (input_bfd)) | |
3999 | { | |
4000 | /* We look forward through the symbol for | |
4001 | the index of the next symbol we are going | |
4002 | to include. I don't know if this is | |
4003 | entirely right. */ | |
4004 | while (finfo->sym_indices[indx] < 0 | |
4005 | && indx < obj_raw_syment_count (input_bfd)) | |
4006 | ++indx; | |
4007 | if (indx >= obj_raw_syment_count (input_bfd)) | |
4008 | indx = output_index; | |
4009 | else | |
4010 | indx = finfo->sym_indices[indx]; | |
4011 | aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx; | |
252b5132 | 4012 | |
116c20d2 NC |
4013 | } |
4014 | } | |
252b5132 | 4015 | |
116c20d2 NC |
4016 | indx = aux.x_sym.x_tagndx.l; |
4017 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
4018 | { | |
4019 | long symindx; | |
252b5132 | 4020 | |
116c20d2 NC |
4021 | symindx = finfo->sym_indices[indx]; |
4022 | if (symindx < 0) | |
4023 | aux.x_sym.x_tagndx.l = 0; | |
4024 | else | |
4025 | aux.x_sym.x_tagndx.l = symindx; | |
4026 | } | |
252b5132 | 4027 | |
116c20d2 | 4028 | } |
252b5132 | 4029 | |
116c20d2 NC |
4030 | /* Copy over the line numbers, unless we are stripping |
4031 | them. We do this on a symbol by symbol basis in | |
4032 | order to more easily handle garbage collection. */ | |
4033 | if ((isymp->n_sclass == C_EXT | |
4034 | || isymp->n_sclass == C_HIDEXT) | |
4035 | && i == 0 | |
4036 | && isymp->n_numaux > 1 | |
4037 | && ISFCN (isymp->n_type) | |
4038 | && aux.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) | |
4039 | { | |
4040 | if (finfo->info->strip != strip_none | |
4041 | && finfo->info->strip != strip_some) | |
4042 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0; | |
4043 | else | |
4044 | { | |
4045 | asection *enclosing; | |
4046 | unsigned int enc_count; | |
4047 | bfd_signed_vma linoff; | |
4048 | struct internal_lineno lin; | |
252b5132 | 4049 | |
116c20d2 NC |
4050 | o = *csectpp; |
4051 | enclosing = xcoff_section_data (abfd, o)->enclosing; | |
4052 | enc_count = xcoff_section_data (abfd, o)->lineno_count; | |
4053 | if (oline != enclosing) | |
4054 | { | |
4055 | file_ptr pos = enclosing->line_filepos; | |
4056 | bfd_size_type amt = linesz * enc_count; | |
4057 | if (bfd_seek (input_bfd, pos, SEEK_SET) != 0 | |
4058 | || (bfd_bread (finfo->linenos, amt, input_bfd) | |
4059 | != amt)) | |
4060 | return FALSE; | |
4061 | oline = enclosing; | |
4062 | } | |
beb1bf64 | 4063 | |
116c20d2 NC |
4064 | linoff = (aux.x_sym.x_fcnary.x_fcn.x_lnnoptr |
4065 | - enclosing->line_filepos); | |
252b5132 | 4066 | |
116c20d2 NC |
4067 | bfd_coff_swap_lineno_in (input_bfd, |
4068 | (void *) (finfo->linenos + linoff), | |
4069 | (void *) &lin); | |
4070 | if (lin.l_lnno != 0 | |
4071 | || ((bfd_size_type) lin.l_addr.l_symndx | |
4072 | != ((esym | |
4073 | - isymesz | |
4074 | - ((bfd_byte *) | |
4075 | obj_coff_external_syms (input_bfd))) | |
4076 | / isymesz))) | |
4077 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0; | |
4078 | else | |
4079 | { | |
4080 | bfd_byte *linpend, *linp; | |
4081 | bfd_vma offset; | |
4082 | bfd_size_type count; | |
252b5132 | 4083 | |
116c20d2 NC |
4084 | lin.l_addr.l_symndx = *indexp; |
4085 | bfd_coff_swap_lineno_out (output_bfd, (void *) &lin, | |
4086 | (void *) (finfo->linenos | |
4087 | + linoff)); | |
beb1bf64 | 4088 | |
116c20d2 NC |
4089 | linpend = (finfo->linenos |
4090 | + enc_count * linesz); | |
4091 | offset = (o->output_section->vma | |
4092 | + o->output_offset | |
4093 | - o->vma); | |
4094 | for (linp = finfo->linenos + linoff + linesz; | |
4095 | linp < linpend; | |
4096 | linp += linesz) | |
4097 | { | |
4098 | bfd_coff_swap_lineno_in (input_bfd, (void *) linp, | |
4099 | (void *) &lin); | |
4100 | if (lin.l_lnno == 0) | |
4101 | break; | |
4102 | lin.l_addr.l_paddr += offset; | |
4103 | bfd_coff_swap_lineno_out (output_bfd, | |
4104 | (void *) &lin, | |
4105 | (void *) linp); | |
4106 | } | |
252b5132 | 4107 | |
116c20d2 | 4108 | count = (linp - (finfo->linenos + linoff)) / linesz; |
252b5132 | 4109 | |
116c20d2 NC |
4110 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = |
4111 | (o->output_section->line_filepos | |
4112 | + o->output_section->lineno_count * linesz); | |
252b5132 | 4113 | |
116c20d2 NC |
4114 | if (bfd_seek (output_bfd, |
4115 | aux.x_sym.x_fcnary.x_fcn.x_lnnoptr, | |
4116 | SEEK_SET) != 0 | |
4117 | || (bfd_bwrite (finfo->linenos + linoff, | |
4118 | linesz * count, output_bfd) | |
4119 | != linesz * count)) | |
4120 | return FALSE; | |
252b5132 | 4121 | |
116c20d2 | 4122 | o->output_section->lineno_count += count; |
252b5132 | 4123 | |
116c20d2 NC |
4124 | if (incls > 0) |
4125 | { | |
4126 | struct internal_syment *iisp, *iispend; | |
4127 | long *iindp; | |
4128 | bfd_byte *oos; | |
4129 | int iiadd; | |
252b5132 | 4130 | |
116c20d2 NC |
4131 | /* Update any C_BINCL or C_EINCL symbols |
4132 | that refer to a line number in the | |
4133 | range we just output. */ | |
4134 | iisp = finfo->internal_syms; | |
4135 | iispend = (iisp | |
4136 | + obj_raw_syment_count (input_bfd)); | |
4137 | iindp = finfo->sym_indices; | |
4138 | oos = finfo->outsyms; | |
4139 | while (iisp < iispend) | |
4140 | { | |
4141 | if (*iindp >= 0 | |
4142 | && (iisp->n_sclass == C_BINCL | |
4143 | || iisp->n_sclass == C_EINCL) | |
4144 | && ((bfd_size_type) iisp->n_value | |
4145 | >= (bfd_size_type)(enclosing->line_filepos + linoff)) | |
4146 | && ((bfd_size_type) iisp->n_value | |
4147 | < (enclosing->line_filepos | |
4148 | + enc_count * linesz))) | |
4149 | { | |
4150 | struct internal_syment iis; | |
252b5132 | 4151 | |
116c20d2 NC |
4152 | bfd_coff_swap_sym_in (output_bfd, |
4153 | (void *) oos, | |
4154 | (void *) &iis); | |
4155 | iis.n_value = | |
4156 | (iisp->n_value | |
4157 | - enclosing->line_filepos | |
4158 | - linoff | |
4159 | + aux.x_sym.x_fcnary.x_fcn.x_lnnoptr); | |
4160 | bfd_coff_swap_sym_out (output_bfd, | |
4161 | (void *) &iis, | |
4162 | (void *) oos); | |
4163 | --incls; | |
4164 | } | |
252b5132 | 4165 | |
116c20d2 NC |
4166 | iiadd = 1 + iisp->n_numaux; |
4167 | if (*iindp >= 0) | |
4168 | oos += iiadd * osymesz; | |
4169 | iisp += iiadd; | |
4170 | iindp += iiadd; | |
4171 | } | |
4172 | } | |
4173 | } | |
252b5132 RH |
4174 | } |
4175 | } | |
252b5132 | 4176 | |
116c20d2 NC |
4177 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, isymp->n_type, |
4178 | isymp->n_sclass, i, isymp->n_numaux, | |
4179 | (void *) outsym); | |
4180 | outsym += osymesz; | |
4181 | esym += isymesz; | |
dc810e39 | 4182 | } |
252b5132 RH |
4183 | } |
4184 | ||
116c20d2 NC |
4185 | indexp += add; |
4186 | isymp += add; | |
4187 | csectpp += add; | |
4188 | } | |
252b5132 | 4189 | |
116c20d2 NC |
4190 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE |
4191 | symbol will be the first symbol in the next input file. In the | |
4192 | normal case, this will save us from writing out the C_FILE symbol | |
4193 | again. */ | |
4194 | if (finfo->last_file_index != -1 | |
4195 | && (bfd_size_type) finfo->last_file_index >= syment_base) | |
4196 | { | |
4197 | finfo->last_file.n_value = output_index; | |
4198 | bfd_coff_swap_sym_out (output_bfd, (void *) &finfo->last_file, | |
4199 | (void *) (finfo->outsyms | |
4200 | + ((finfo->last_file_index - syment_base) | |
4201 | * osymesz))); | |
4202 | } | |
492055e6 | 4203 | |
116c20d2 NC |
4204 | /* Write the modified symbols to the output file. */ |
4205 | if (outsym > finfo->outsyms) | |
4206 | { | |
4207 | file_ptr pos = obj_sym_filepos (output_bfd) + syment_base * osymesz; | |
4208 | bfd_size_type amt = outsym - finfo->outsyms; | |
4209 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
4210 | || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt) | |
4211 | return FALSE; | |
fbc4fff4 | 4212 | |
116c20d2 NC |
4213 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) |
4214 | + (outsym - finfo->outsyms) / osymesz) | |
4215 | == output_index); | |
fbc4fff4 | 4216 | |
116c20d2 NC |
4217 | obj_raw_syment_count (output_bfd) = output_index; |
4218 | } | |
fbc4fff4 | 4219 | |
116c20d2 NC |
4220 | /* Don't let the linker relocation routines discard the symbols. */ |
4221 | keep_syms = obj_coff_keep_syms (input_bfd); | |
4222 | obj_coff_keep_syms (input_bfd) = TRUE; | |
252b5132 | 4223 | |
116c20d2 NC |
4224 | /* Relocate the contents of each section. */ |
4225 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
4226 | { | |
4227 | bfd_byte *contents; | |
252b5132 | 4228 | |
116c20d2 NC |
4229 | if (! o->linker_mark) |
4230 | /* This section was omitted from the link. */ | |
4231 | continue; | |
252b5132 | 4232 | |
116c20d2 NC |
4233 | if ((o->flags & SEC_HAS_CONTENTS) == 0 |
4234 | || o->size == 0 | |
4235 | || (o->flags & SEC_IN_MEMORY) != 0) | |
4236 | continue; | |
dc810e39 | 4237 | |
116c20d2 NC |
4238 | /* We have set filepos correctly for the sections we created to |
4239 | represent csects, so bfd_get_section_contents should work. */ | |
4240 | if (coff_section_data (input_bfd, o) != NULL | |
4241 | && coff_section_data (input_bfd, o)->contents != NULL) | |
4242 | contents = coff_section_data (input_bfd, o)->contents; | |
4243 | else | |
4244 | { | |
4245 | bfd_size_type sz = o->rawsize ? o->rawsize : o->size; | |
4246 | if (!bfd_get_section_contents (input_bfd, o, finfo->contents, 0, sz)) | |
4247 | return FALSE; | |
4248 | contents = finfo->contents; | |
252b5132 RH |
4249 | } |
4250 | ||
116c20d2 | 4251 | if ((o->flags & SEC_RELOC) != 0) |
252b5132 | 4252 | { |
116c20d2 NC |
4253 | int target_index; |
4254 | struct internal_reloc *internal_relocs; | |
4255 | struct internal_reloc *irel; | |
4256 | bfd_vma offset; | |
4257 | struct internal_reloc *irelend; | |
4258 | struct xcoff_link_hash_entry **rel_hash; | |
4259 | long r_symndx; | |
252b5132 | 4260 | |
116c20d2 NC |
4261 | /* Read in the relocs. */ |
4262 | target_index = o->output_section->target_index; | |
4263 | internal_relocs = (xcoff_read_internal_relocs | |
4264 | (input_bfd, o, FALSE, finfo->external_relocs, | |
4265 | TRUE, | |
4266 | (finfo->section_info[target_index].relocs | |
4267 | + o->output_section->reloc_count))); | |
4268 | if (internal_relocs == NULL) | |
4269 | return FALSE; | |
beb1bf64 | 4270 | |
116c20d2 NC |
4271 | /* Call processor specific code to relocate the section |
4272 | contents. */ | |
4273 | if (! bfd_coff_relocate_section (output_bfd, finfo->info, | |
4274 | input_bfd, o, | |
4275 | contents, | |
4276 | internal_relocs, | |
4277 | finfo->internal_syms, | |
4278 | xcoff_data (input_bfd)->csects)) | |
b34976b6 | 4279 | return FALSE; |
252b5132 | 4280 | |
116c20d2 NC |
4281 | offset = o->output_section->vma + o->output_offset - o->vma; |
4282 | irel = internal_relocs; | |
4283 | irelend = irel + o->reloc_count; | |
4284 | rel_hash = (finfo->section_info[target_index].rel_hashes | |
4285 | + o->output_section->reloc_count); | |
4286 | for (; irel < irelend; irel++, rel_hash++) | |
4287 | { | |
4288 | struct xcoff_link_hash_entry *h = NULL; | |
4289 | struct internal_ldrel ldrel; | |
252b5132 | 4290 | |
116c20d2 | 4291 | *rel_hash = NULL; |
252b5132 | 4292 | |
116c20d2 | 4293 | /* Adjust the reloc address and symbol index. */ |
252b5132 | 4294 | |
116c20d2 | 4295 | irel->r_vaddr += offset; |
252b5132 | 4296 | |
116c20d2 | 4297 | r_symndx = irel->r_symndx; |
beb1bf64 | 4298 | |
116c20d2 NC |
4299 | if (r_symndx == -1) |
4300 | h = NULL; | |
4301 | else | |
4302 | h = obj_xcoff_sym_hashes (input_bfd)[r_symndx]; | |
252b5132 | 4303 | |
116c20d2 | 4304 | if (r_symndx != -1 && finfo->info->strip != strip_all) |
252b5132 | 4305 | { |
116c20d2 NC |
4306 | if (h != NULL |
4307 | && h->smclas != XMC_TD | |
4308 | && (irel->r_type == R_TOC | |
4309 | || irel->r_type == R_GL | |
4310 | || irel->r_type == R_TCL | |
4311 | || irel->r_type == R_TRL | |
4312 | || irel->r_type == R_TRLA)) | |
252b5132 | 4313 | { |
116c20d2 NC |
4314 | /* This is a TOC relative reloc with a symbol |
4315 | attached. The symbol should be the one which | |
4316 | this reloc is for. We want to make this | |
4317 | reloc against the TOC address of the symbol, | |
4318 | not the symbol itself. */ | |
4319 | BFD_ASSERT (h->toc_section != NULL); | |
4320 | BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); | |
4321 | if (h->u.toc_indx != -1) | |
4322 | irel->r_symndx = h->u.toc_indx; | |
4323 | else | |
4324 | { | |
4325 | struct xcoff_toc_rel_hash *n; | |
4326 | struct xcoff_link_section_info *si; | |
4327 | bfd_size_type amt; | |
4328 | ||
4329 | amt = sizeof (* n); | |
4330 | n = bfd_alloc (finfo->output_bfd, amt); | |
4331 | if (n == NULL) | |
4332 | return FALSE; | |
4333 | si = finfo->section_info + target_index; | |
4334 | n->next = si->toc_rel_hashes; | |
4335 | n->h = h; | |
4336 | n->rel = irel; | |
4337 | si->toc_rel_hashes = n; | |
4338 | } | |
252b5132 | 4339 | } |
116c20d2 | 4340 | else if (h != NULL) |
252b5132 | 4341 | { |
116c20d2 NC |
4342 | /* This is a global symbol. */ |
4343 | if (h->indx >= 0) | |
4344 | irel->r_symndx = h->indx; | |
4345 | else | |
4346 | { | |
4347 | /* This symbol is being written at the end | |
4348 | of the file, and we do not yet know the | |
4349 | symbol index. We save the pointer to the | |
4350 | hash table entry in the rel_hash list. | |
4351 | We set the indx field to -2 to indicate | |
4352 | that this symbol must not be stripped. */ | |
4353 | *rel_hash = h; | |
4354 | h->indx = -2; | |
4355 | } | |
252b5132 | 4356 | } |
116c20d2 NC |
4357 | else |
4358 | { | |
4359 | long indx; | |
252b5132 | 4360 | |
116c20d2 | 4361 | indx = finfo->sym_indices[r_symndx]; |
252b5132 | 4362 | |
116c20d2 NC |
4363 | if (indx == -1) |
4364 | { | |
4365 | struct internal_syment *is; | |
252b5132 | 4366 | |
116c20d2 NC |
4367 | /* Relocations against a TC0 TOC anchor are |
4368 | automatically transformed to be against | |
4369 | the TOC anchor in the output file. */ | |
4370 | is = finfo->internal_syms + r_symndx; | |
4371 | if (is->n_sclass == C_HIDEXT | |
4372 | && is->n_numaux > 0) | |
4373 | { | |
4374 | void * auxptr; | |
4375 | union internal_auxent aux; | |
252b5132 | 4376 | |
116c20d2 NC |
4377 | auxptr = ((void *) |
4378 | (((bfd_byte *) | |
4379 | obj_coff_external_syms (input_bfd)) | |
4380 | + ((r_symndx + is->n_numaux) | |
4381 | * isymesz))); | |
4382 | bfd_coff_swap_aux_in (input_bfd, auxptr, | |
4383 | is->n_type, is->n_sclass, | |
4384 | is->n_numaux - 1, | |
4385 | is->n_numaux, | |
4386 | (void *) &aux); | |
4387 | if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD | |
4388 | && aux.x_csect.x_smclas == XMC_TC0) | |
4389 | indx = finfo->toc_symindx; | |
4390 | } | |
4391 | } | |
252b5132 | 4392 | |
116c20d2 NC |
4393 | if (indx != -1) |
4394 | irel->r_symndx = indx; | |
4395 | else | |
4396 | { | |
252b5132 | 4397 | |
116c20d2 | 4398 | struct internal_syment *is; |
252b5132 | 4399 | |
116c20d2 NC |
4400 | const char *name; |
4401 | char buf[SYMNMLEN + 1]; | |
252b5132 | 4402 | |
116c20d2 NC |
4403 | /* This reloc is against a symbol we are |
4404 | stripping. It would be possible to handle | |
4405 | this case, but I don't think it's worth it. */ | |
4406 | is = finfo->internal_syms + r_symndx; | |
beb1bf64 | 4407 | |
116c20d2 NC |
4408 | name = (_bfd_coff_internal_syment_name |
4409 | (input_bfd, is, buf)); | |
252b5132 | 4410 | |
116c20d2 NC |
4411 | if (name == NULL) |
4412 | return FALSE; | |
252b5132 | 4413 | |
116c20d2 NC |
4414 | if (! ((*finfo->info->callbacks->unattached_reloc) |
4415 | (finfo->info, name, input_bfd, o, | |
4416 | irel->r_vaddr))) | |
4417 | return FALSE; | |
4418 | } | |
4419 | } | |
252b5132 | 4420 | } |
252b5132 | 4421 | |
116c20d2 | 4422 | switch (irel->r_type) |
252b5132 | 4423 | { |
116c20d2 NC |
4424 | default: |
4425 | if (h == NULL | |
4426 | || h->root.type == bfd_link_hash_defined | |
4427 | || h->root.type == bfd_link_hash_defweak | |
4428 | || h->root.type == bfd_link_hash_common) | |
4429 | break; | |
4430 | /* Fall through. */ | |
4431 | case R_POS: | |
4432 | case R_NEG: | |
4433 | case R_RL: | |
4434 | case R_RLA: | |
0e3212ad RS |
4435 | if (h != NULL |
4436 | && (h->root.type == bfd_link_hash_defined | |
4437 | || h->root.type == bfd_link_hash_defweak) | |
4438 | && bfd_is_abs_section (h->root.u.def.section)) | |
4439 | break; | |
116c20d2 NC |
4440 | /* This reloc needs to be copied into the .loader |
4441 | section. */ | |
4442 | ldrel.l_vaddr = irel->r_vaddr; | |
4443 | if (r_symndx == -1) | |
4444 | ldrel.l_symndx = -(bfd_size_type ) 1; | |
4445 | else if (h == NULL | |
4446 | || (h->root.type == bfd_link_hash_defined | |
4447 | || h->root.type == bfd_link_hash_defweak | |
4448 | || h->root.type == bfd_link_hash_common)) | |
252b5132 | 4449 | { |
116c20d2 | 4450 | asection *sec; |
252b5132 | 4451 | |
116c20d2 NC |
4452 | if (h == NULL) |
4453 | sec = xcoff_data (input_bfd)->csects[r_symndx]; | |
4454 | else if (h->root.type == bfd_link_hash_common) | |
4455 | sec = h->root.u.c.p->section; | |
4456 | else | |
4457 | sec = h->root.u.def.section; | |
4458 | sec = sec->output_section; | |
252b5132 | 4459 | |
116c20d2 NC |
4460 | if (strcmp (sec->name, ".text") == 0) |
4461 | ldrel.l_symndx = 0; | |
4462 | else if (strcmp (sec->name, ".data") == 0) | |
4463 | ldrel.l_symndx = 1; | |
4464 | else if (strcmp (sec->name, ".bss") == 0) | |
4465 | ldrel.l_symndx = 2; | |
4466 | else | |
4467 | { | |
4468 | (*_bfd_error_handler) | |
4469 | (_("%B: loader reloc in unrecognized section `%A'"), | |
4470 | input_bfd, sec); | |
4471 | bfd_set_error (bfd_error_nonrepresentable_section); | |
4472 | return FALSE; | |
252b5132 RH |
4473 | } |
4474 | } | |
116c20d2 | 4475 | else |
252b5132 | 4476 | { |
858ef0ce | 4477 | if (h->ldindx < 0) |
116c20d2 NC |
4478 | { |
4479 | (*_bfd_error_handler) | |
4480 | (_("%B: `%s' in loader reloc but not loader sym"), | |
4481 | input_bfd, | |
4482 | h->root.root.string); | |
4483 | bfd_set_error (bfd_error_bad_value); | |
4484 | return FALSE; | |
4485 | } | |
4486 | ldrel.l_symndx = h->ldindx; | |
252b5132 | 4487 | } |
116c20d2 NC |
4488 | ldrel.l_rtype = (irel->r_size << 8) | irel->r_type; |
4489 | ldrel.l_rsecnm = o->output_section->target_index; | |
4490 | if (xcoff_hash_table (finfo->info)->textro | |
858ef0ce | 4491 | && strcmp (o->output_section->name, ".text") == 0) |
252b5132 | 4492 | { |
116c20d2 NC |
4493 | (*_bfd_error_handler) |
4494 | (_("%B: loader reloc in read-only section %A"), | |
4495 | input_bfd, o->output_section); | |
4496 | bfd_set_error (bfd_error_invalid_operation); | |
4497 | return FALSE; | |
252b5132 | 4498 | } |
116c20d2 NC |
4499 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, |
4500 | finfo->ldrel); | |
beb1bf64 | 4501 | |
116c20d2 NC |
4502 | finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd); |
4503 | break; | |
252b5132 | 4504 | |
116c20d2 NC |
4505 | case R_TOC: |
4506 | case R_GL: | |
4507 | case R_TCL: | |
4508 | case R_TRL: | |
4509 | case R_TRLA: | |
4510 | /* We should never need a .loader reloc for a TOC | |
4511 | relative reloc. */ | |
4512 | break; | |
4513 | } | |
4514 | } | |
252b5132 | 4515 | |
116c20d2 NC |
4516 | o->output_section->reloc_count += o->reloc_count; |
4517 | } | |
252b5132 | 4518 | |
116c20d2 NC |
4519 | /* Write out the modified section contents. */ |
4520 | if (! bfd_set_section_contents (output_bfd, o->output_section, | |
4521 | contents, (file_ptr) o->output_offset, | |
4522 | o->size)) | |
4523 | return FALSE; | |
4524 | } | |
252b5132 | 4525 | |
116c20d2 | 4526 | obj_coff_keep_syms (input_bfd) = keep_syms; |
252b5132 | 4527 | |
116c20d2 NC |
4528 | if (! finfo->info->keep_memory) |
4529 | { | |
4530 | if (! _bfd_coff_free_symbols (input_bfd)) | |
4531 | return FALSE; | |
4532 | } | |
252b5132 | 4533 | |
116c20d2 NC |
4534 | return TRUE; |
4535 | } | |
252b5132 | 4536 | |
116c20d2 NC |
4537 | #undef N_TMASK |
4538 | #undef N_BTSHFT | |
252b5132 | 4539 | |
116c20d2 | 4540 | /* Sort relocs by VMA. This is called via qsort. */ |
252b5132 | 4541 | |
116c20d2 NC |
4542 | static int |
4543 | xcoff_sort_relocs (const void * p1, const void * p2) | |
4544 | { | |
4545 | const struct internal_reloc *r1 = (const struct internal_reloc *) p1; | |
4546 | const struct internal_reloc *r2 = (const struct internal_reloc *) p2; | |
252b5132 | 4547 | |
116c20d2 NC |
4548 | if (r1->r_vaddr > r2->r_vaddr) |
4549 | return 1; | |
4550 | else if (r1->r_vaddr < r2->r_vaddr) | |
4551 | return -1; | |
4552 | else | |
4553 | return 0; | |
4554 | } | |
252b5132 | 4555 | |
47dfb2ca RS |
4556 | /* Return true if section SEC is a TOC section. */ |
4557 | ||
4558 | static inline bfd_boolean | |
4559 | xcoff_toc_section_p (asection *sec) | |
4560 | { | |
4561 | const char *name; | |
4562 | ||
4563 | name = sec->name; | |
4564 | if (name[0] == '.' && name[1] == 't') | |
4565 | { | |
4566 | if (name[2] == 'c') | |
4567 | { | |
4568 | if (name[3] == '0' && name[4] == 0) | |
4569 | return TRUE; | |
4570 | if (name[3] == 0) | |
4571 | return TRUE; | |
4572 | } | |
4573 | if (name[2] == 'd' && name[3] == 0) | |
4574 | return TRUE; | |
4575 | } | |
4576 | return FALSE; | |
4577 | } | |
4578 | ||
4579 | /* See if the link requires a TOC (it usually does!). If so, find a | |
4580 | good place to put the TOC anchor csect, and write out the associated | |
4581 | symbol. */ | |
4582 | ||
4583 | static bfd_boolean | |
4584 | xcoff_find_tc0 (bfd *output_bfd, struct xcoff_final_link_info *finfo) | |
4585 | { | |
4586 | bfd_vma toc_start, toc_end, start, end, best_address; | |
4587 | asection *sec; | |
4588 | bfd *input_bfd; | |
4589 | int section_index; | |
4590 | struct internal_syment irsym; | |
4591 | union internal_auxent iraux; | |
4592 | file_ptr pos; | |
4593 | size_t size; | |
4594 | ||
4595 | /* Set [TOC_START, TOC_END) to the range of the TOC. Record the | |
4596 | index of a csect at the beginning of the TOC. */ | |
4597 | toc_start = ~(bfd_vma) 0; | |
4598 | toc_end = 0; | |
4599 | section_index = -1; | |
4600 | for (input_bfd = finfo->info->input_bfds; | |
4601 | input_bfd != NULL; | |
4602 | input_bfd = input_bfd->link_next) | |
4603 | for (sec = input_bfd->sections; sec != NULL; sec = sec->next) | |
4604 | if ((sec->flags & SEC_MARK) != 0 && xcoff_toc_section_p (sec)) | |
4605 | { | |
4606 | start = sec->output_section->vma + sec->output_offset; | |
4607 | if (toc_start > start) | |
4608 | { | |
4609 | toc_start = start; | |
4610 | section_index = sec->output_section->target_index; | |
4611 | } | |
4612 | ||
4613 | end = start + sec->size; | |
4614 | if (toc_end < end) | |
4615 | toc_end = end; | |
4616 | } | |
4617 | ||
4618 | /* There's no need for a TC0 symbol if we don't have a TOC. */ | |
4619 | if (toc_end < toc_start) | |
4620 | { | |
4621 | xcoff_data (output_bfd)->toc = toc_start; | |
4622 | return TRUE; | |
4623 | } | |
4624 | ||
4625 | if (toc_end - toc_start < 0x8000) | |
4626 | /* Every TOC csect can be accessed from TOC_START. */ | |
4627 | best_address = toc_start; | |
4628 | else | |
4629 | { | |
4630 | /* Find the lowest TOC csect that is still within range of TOC_END. */ | |
4631 | best_address = toc_end; | |
4632 | for (input_bfd = finfo->info->input_bfds; | |
4633 | input_bfd != NULL; | |
4634 | input_bfd = input_bfd->link_next) | |
4635 | for (sec = input_bfd->sections; sec != NULL; sec = sec->next) | |
4636 | if ((sec->flags & SEC_MARK) != 0 && xcoff_toc_section_p (sec)) | |
4637 | { | |
4638 | start = sec->output_section->vma + sec->output_offset; | |
4639 | if (start < best_address | |
4640 | && start + 0x8000 >= toc_end) | |
4641 | { | |
4642 | best_address = start; | |
4643 | section_index = sec->output_section->target_index; | |
4644 | } | |
4645 | } | |
4646 | ||
4647 | /* Make sure that the start of the TOC is also within range. */ | |
4648 | if (best_address > toc_start + 0x8000) | |
4649 | { | |
4650 | (*_bfd_error_handler) | |
4651 | (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc " | |
4652 | "when compiling"), | |
4653 | (unsigned long) (toc_end - toc_start)); | |
4654 | bfd_set_error (bfd_error_file_too_big); | |
4655 | return FALSE; | |
4656 | } | |
4657 | } | |
4658 | ||
4659 | /* Record the chosen TOC value. */ | |
4660 | finfo->toc_symindx = obj_raw_syment_count (output_bfd); | |
4661 | xcoff_data (output_bfd)->toc = best_address; | |
4662 | xcoff_data (output_bfd)->sntoc = section_index; | |
4663 | ||
4664 | /* Fill out the TC0 symbol. */ | |
4665 | if (!bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &irsym, "TOC")) | |
4666 | return FALSE; | |
4667 | irsym.n_value = best_address; | |
4668 | irsym.n_scnum = section_index; | |
4669 | irsym.n_sclass = C_HIDEXT; | |
4670 | irsym.n_type = T_NULL; | |
4671 | irsym.n_numaux = 1; | |
4672 | bfd_coff_swap_sym_out (output_bfd, &irsym, finfo->outsyms); | |
4673 | ||
4674 | /* Fill out the auxillary csect information. */ | |
4675 | memset (&iraux, 0, sizeof iraux); | |
4676 | iraux.x_csect.x_smtyp = XTY_SD; | |
4677 | iraux.x_csect.x_smclas = XMC_TC0; | |
4678 | iraux.x_csect.x_scnlen.l = 0; | |
4679 | bfd_coff_swap_aux_out (output_bfd, &iraux, T_NULL, C_HIDEXT, 0, 1, | |
4680 | finfo->outsyms + bfd_coff_symesz (output_bfd)); | |
4681 | ||
4682 | /* Write the contents to the file. */ | |
4683 | pos = obj_sym_filepos (output_bfd); | |
4684 | pos += obj_raw_syment_count (output_bfd) * bfd_coff_symesz (output_bfd); | |
4685 | size = 2 * bfd_coff_symesz (output_bfd); | |
4686 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
4687 | || bfd_bwrite (finfo->outsyms, size, output_bfd) != size) | |
4688 | return FALSE; | |
4689 | obj_raw_syment_count (output_bfd) += 2; | |
4690 | ||
4691 | return TRUE; | |
4692 | } | |
4693 | ||
116c20d2 | 4694 | /* Write out a non-XCOFF global symbol. */ |
252b5132 | 4695 | |
116c20d2 NC |
4696 | static bfd_boolean |
4697 | xcoff_write_global_symbol (struct xcoff_link_hash_entry *h, void * inf) | |
4698 | { | |
4699 | struct xcoff_final_link_info *finfo = (struct xcoff_final_link_info *) inf; | |
4700 | bfd *output_bfd; | |
4701 | bfd_byte *outsym; | |
4702 | struct internal_syment isym; | |
4703 | union internal_auxent aux; | |
4704 | bfd_boolean result; | |
4705 | file_ptr pos; | |
4706 | bfd_size_type amt; | |
252b5132 | 4707 | |
116c20d2 NC |
4708 | output_bfd = finfo->output_bfd; |
4709 | outsym = finfo->outsyms; | |
252b5132 | 4710 | |
116c20d2 | 4711 | if (h->root.type == bfd_link_hash_warning) |
252b5132 | 4712 | { |
116c20d2 NC |
4713 | h = (struct xcoff_link_hash_entry *) h->root.u.i.link; |
4714 | if (h->root.type == bfd_link_hash_new) | |
4715 | return TRUE; | |
252b5132 RH |
4716 | } |
4717 | ||
116c20d2 NC |
4718 | /* If this symbol was garbage collected, just skip it. */ |
4719 | if (xcoff_hash_table (finfo->info)->gc | |
4720 | && (h->flags & XCOFF_MARK) == 0) | |
4721 | return TRUE; | |
4722 | ||
4723 | /* If we need a .loader section entry, write it out. */ | |
4724 | if (h->ldsym != NULL) | |
252b5132 | 4725 | { |
116c20d2 NC |
4726 | struct internal_ldsym *ldsym; |
4727 | bfd *impbfd; | |
252b5132 | 4728 | |
116c20d2 | 4729 | ldsym = h->ldsym; |
252b5132 | 4730 | |
116c20d2 NC |
4731 | if (h->root.type == bfd_link_hash_undefined |
4732 | || h->root.type == bfd_link_hash_undefweak) | |
4733 | { | |
252b5132 | 4734 | |
116c20d2 NC |
4735 | ldsym->l_value = 0; |
4736 | ldsym->l_scnum = N_UNDEF; | |
4737 | ldsym->l_smtype = XTY_ER; | |
4738 | impbfd = h->root.u.undef.abfd; | |
252b5132 | 4739 | |
116c20d2 NC |
4740 | } |
4741 | else if (h->root.type == bfd_link_hash_defined | |
4742 | || h->root.type == bfd_link_hash_defweak) | |
4743 | { | |
4744 | asection *sec; | |
252b5132 | 4745 | |
116c20d2 NC |
4746 | sec = h->root.u.def.section; |
4747 | ldsym->l_value = (sec->output_section->vma | |
4748 | + sec->output_offset | |
4749 | + h->root.u.def.value); | |
4750 | ldsym->l_scnum = sec->output_section->target_index; | |
4751 | ldsym->l_smtype = XTY_SD; | |
4752 | impbfd = sec->owner; | |
252b5132 | 4753 | |
dc810e39 | 4754 | } |
116c20d2 NC |
4755 | else |
4756 | abort (); | |
252b5132 | 4757 | |
116c20d2 NC |
4758 | if (((h->flags & XCOFF_DEF_REGULAR) == 0 |
4759 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
4760 | || (h->flags & XCOFF_IMPORT) != 0) | |
4761 | /* Clear l_smtype | |
4762 | Import symbols are defined so the check above will make | |
4763 | the l_smtype XTY_SD. But this is not correct, it should | |
4764 | be cleared. */ | |
4765 | ldsym->l_smtype |= L_IMPORT; | |
252b5132 | 4766 | |
116c20d2 NC |
4767 | if (((h->flags & XCOFF_DEF_REGULAR) != 0 |
4768 | && (h->flags & XCOFF_DEF_DYNAMIC) != 0) | |
4769 | || (h->flags & XCOFF_EXPORT) != 0) | |
4770 | ldsym->l_smtype |= L_EXPORT; | |
252b5132 | 4771 | |
116c20d2 NC |
4772 | if ((h->flags & XCOFF_ENTRY) != 0) |
4773 | ldsym->l_smtype |= L_ENTRY; | |
4774 | ||
4775 | if ((h->flags & XCOFF_RTINIT) != 0) | |
4776 | ldsym->l_smtype = XTY_SD; | |
4777 | ||
4778 | ldsym->l_smclas = h->smclas; | |
4779 | ||
4780 | if (ldsym->l_smtype & L_IMPORT) | |
dc810e39 | 4781 | { |
116c20d2 NC |
4782 | if ((h->root.type == bfd_link_hash_defined |
4783 | || h->root.type == bfd_link_hash_defweak) | |
4784 | && (h->root.u.def.value != 0)) | |
4785 | ldsym->l_smclas = XMC_XO; | |
dc810e39 | 4786 | |
116c20d2 NC |
4787 | else if ((h->flags & (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) == |
4788 | (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) | |
4789 | ldsym->l_smclas = XMC_SV3264; | |
252b5132 | 4790 | |
116c20d2 NC |
4791 | else if (h->flags & XCOFF_SYSCALL32) |
4792 | ldsym->l_smclas = XMC_SV; | |
252b5132 | 4793 | |
116c20d2 NC |
4794 | else if (h->flags & XCOFF_SYSCALL64) |
4795 | ldsym->l_smclas = XMC_SV64; | |
4796 | } | |
4797 | ||
4798 | if (ldsym->l_ifile == -(bfd_size_type) 1) | |
4799 | { | |
4800 | ldsym->l_ifile = 0; | |
4801 | } | |
4802 | else if (ldsym->l_ifile == 0) | |
4803 | { | |
4804 | if ((ldsym->l_smtype & L_IMPORT) == 0) | |
4805 | ldsym->l_ifile = 0; | |
4806 | else if (impbfd == NULL) | |
4807 | ldsym->l_ifile = 0; | |
4808 | else | |
dc810e39 | 4809 | { |
116c20d2 NC |
4810 | BFD_ASSERT (impbfd->xvec == output_bfd->xvec); |
4811 | ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; | |
4812 | } | |
4813 | } | |
252b5132 | 4814 | |
116c20d2 | 4815 | ldsym->l_parm = 0; |
252b5132 | 4816 | |
116c20d2 | 4817 | BFD_ASSERT (h->ldindx >= 0); |
252b5132 | 4818 | |
116c20d2 NC |
4819 | bfd_xcoff_swap_ldsym_out (output_bfd, ldsym, |
4820 | (finfo->ldsym + | |
4821 | (h->ldindx - 3) | |
4822 | * bfd_xcoff_ldsymsz(finfo->output_bfd))); | |
4823 | h->ldsym = NULL; | |
4824 | } | |
252b5132 | 4825 | |
116c20d2 NC |
4826 | /* If this symbol needs global linkage code, write it out. */ |
4827 | if (h->root.type == bfd_link_hash_defined | |
4828 | && (h->root.u.def.section | |
4829 | == xcoff_hash_table (finfo->info)->linkage_section)) | |
4830 | { | |
4831 | bfd_byte *p; | |
4832 | bfd_vma tocoff; | |
4833 | unsigned int i; | |
252b5132 | 4834 | |
116c20d2 | 4835 | p = h->root.u.def.section->contents + h->root.u.def.value; |
252b5132 | 4836 | |
116c20d2 NC |
4837 | /* The first instruction in the global linkage code loads a |
4838 | specific TOC element. */ | |
4839 | tocoff = (h->descriptor->toc_section->output_section->vma | |
4840 | + h->descriptor->toc_section->output_offset | |
4841 | - xcoff_data (output_bfd)->toc); | |
dc810e39 | 4842 | |
116c20d2 NC |
4843 | if ((h->descriptor->flags & XCOFF_SET_TOC) != 0) |
4844 | tocoff += h->descriptor->u.toc_offset; | |
252b5132 | 4845 | |
116c20d2 NC |
4846 | /* The first instruction in the glink code needs to be |
4847 | cooked to to hold the correct offset in the toc. The | |
4848 | rest are just output raw. */ | |
4849 | bfd_put_32 (output_bfd, | |
4850 | bfd_xcoff_glink_code(output_bfd, 0) | (tocoff & 0xffff), p); | |
252b5132 | 4851 | |
116c20d2 NC |
4852 | /* Start with i == 1 to get past the first instruction done above |
4853 | The /4 is because the glink code is in bytes and we are going | |
4854 | 4 at a pop. */ | |
4855 | for (i = 1; i < bfd_xcoff_glink_code_size(output_bfd) / 4; i++) | |
4856 | bfd_put_32 (output_bfd, | |
4857 | (bfd_vma) bfd_xcoff_glink_code(output_bfd, i), | |
4858 | &p[4 * i]); | |
4859 | } | |
dc810e39 | 4860 | |
116c20d2 NC |
4861 | /* If we created a TOC entry for this symbol, write out the required |
4862 | relocs. */ | |
4863 | if ((h->flags & XCOFF_SET_TOC) != 0) | |
4864 | { | |
4865 | asection *tocsec; | |
4866 | asection *osec; | |
4867 | int oindx; | |
4868 | struct internal_reloc *irel; | |
4869 | struct internal_ldrel ldrel; | |
4870 | struct internal_syment irsym; | |
4871 | union internal_auxent iraux; | |
dc810e39 | 4872 | |
116c20d2 NC |
4873 | tocsec = h->toc_section; |
4874 | osec = tocsec->output_section; | |
4875 | oindx = osec->target_index; | |
4876 | irel = finfo->section_info[oindx].relocs + osec->reloc_count; | |
4877 | irel->r_vaddr = (osec->vma | |
4878 | + tocsec->output_offset | |
4879 | + h->u.toc_offset); | |
4880 | ||
4881 | if (h->indx >= 0) | |
4882 | irel->r_symndx = h->indx; | |
4883 | else | |
4884 | { | |
4885 | h->indx = -2; | |
4886 | irel->r_symndx = obj_raw_syment_count (output_bfd); | |
4887 | } | |
4888 | ||
4889 | BFD_ASSERT (h->ldindx >= 0); | |
4890 | ||
4891 | /* Initialize the aux union here instead of closer to when it is | |
4892 | written out below because the length of the csect depends on | |
4893 | whether the output is 32 or 64 bit. */ | |
4894 | memset (&iraux, 0, sizeof iraux); | |
4895 | iraux.x_csect.x_smtyp = XTY_SD; | |
4896 | /* iraux.x_csect.x_scnlen.l = 4 or 8, see below. */ | |
4897 | iraux.x_csect.x_smclas = XMC_TC; | |
4898 | ||
4899 | /* 32 bit uses a 32 bit R_POS to do the relocations | |
4900 | 64 bit uses a 64 bit R_POS to do the relocations | |
4901 | ||
4902 | Also needs to change the csect size : 4 for 32 bit, 8 for 64 bit | |
4903 | ||
4904 | Which one is determined by the backend. */ | |
4905 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
4906 | { | |
4907 | irel->r_size = 63; | |
4908 | iraux.x_csect.x_scnlen.l = 8; | |
4909 | } | |
4910 | else if (bfd_xcoff_is_xcoff32 (output_bfd)) | |
4911 | { | |
4912 | irel->r_size = 31; | |
4913 | iraux.x_csect.x_scnlen.l = 4; | |
4914 | } | |
4915 | else | |
4916 | return FALSE; | |
4917 | ||
4918 | irel->r_type = R_POS; | |
4919 | finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; | |
4920 | ++osec->reloc_count; | |
4921 | ||
4922 | ldrel.l_vaddr = irel->r_vaddr; | |
4923 | ldrel.l_symndx = h->ldindx; | |
4924 | ldrel.l_rtype = (irel->r_size << 8) | R_POS; | |
4925 | ldrel.l_rsecnm = oindx; | |
4926 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); | |
4927 | finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd); | |
4928 | ||
4929 | /* We need to emit a symbol to define a csect which holds | |
4930 | the reloc. */ | |
4931 | if (finfo->info->strip != strip_all) | |
4932 | { | |
4933 | result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, | |
4934 | &irsym, h->root.root.string); | |
4935 | if (!result) | |
4936 | return FALSE; | |
4937 | ||
4938 | irsym.n_value = irel->r_vaddr; | |
4939 | irsym.n_scnum = osec->target_index; | |
4940 | irsym.n_sclass = C_HIDEXT; | |
4941 | irsym.n_type = T_NULL; | |
4942 | irsym.n_numaux = 1; | |
4943 | ||
4944 | bfd_coff_swap_sym_out (output_bfd, (void *) &irsym, (void *) outsym); | |
4945 | outsym += bfd_coff_symesz (output_bfd); | |
4946 | ||
4947 | /* Note : iraux is initialized above. */ | |
4948 | bfd_coff_swap_aux_out (output_bfd, (void *) &iraux, T_NULL, C_HIDEXT, | |
4949 | 0, 1, (void *) outsym); | |
4950 | outsym += bfd_coff_auxesz (output_bfd); | |
4951 | ||
4952 | if (h->indx >= 0) | |
4953 | { | |
4954 | /* We aren't going to write out the symbols below, so we | |
4955 | need to write them out now. */ | |
4956 | pos = obj_sym_filepos (output_bfd); | |
4957 | pos += (obj_raw_syment_count (output_bfd) | |
4958 | * bfd_coff_symesz (output_bfd)); | |
4959 | amt = outsym - finfo->outsyms; | |
4960 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
4961 | || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt) | |
4962 | return FALSE; | |
4963 | obj_raw_syment_count (output_bfd) += | |
4964 | (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd); | |
4965 | ||
4966 | outsym = finfo->outsyms; | |
4967 | } | |
4968 | } | |
4969 | } | |
4970 | ||
4971 | /* If this symbol is a specially defined function descriptor, write | |
4972 | it out. The first word is the address of the function code | |
4973 | itself, the second word is the address of the TOC, and the third | |
4974 | word is zero. | |
4975 | ||
4976 | 32 bit vs 64 bit | |
4977 | The addresses for the 32 bit will take 4 bytes and the addresses | |
4978 | for 64 bit will take 8 bytes. Similar for the relocs. This type | |
4979 | of logic was also done above to create a TOC entry in | |
4980 | xcoff_write_global_symbol. */ | |
4981 | if ((h->flags & XCOFF_DESCRIPTOR) != 0 | |
4982 | && h->root.type == bfd_link_hash_defined | |
4983 | && (h->root.u.def.section | |
4984 | == xcoff_hash_table (finfo->info)->descriptor_section)) | |
4985 | { | |
4986 | asection *sec; | |
4987 | asection *osec; | |
4988 | int oindx; | |
4989 | bfd_byte *p; | |
4990 | struct xcoff_link_hash_entry *hentry; | |
4991 | asection *esec; | |
4992 | struct internal_reloc *irel; | |
4993 | struct internal_ldrel ldrel; | |
4994 | asection *tsec; | |
4995 | unsigned int reloc_size, byte_size; | |
4996 | ||
4997 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
4998 | { | |
4999 | reloc_size = 63; | |
5000 | byte_size = 8; | |
5001 | } | |
5002 | else if (bfd_xcoff_is_xcoff32 (output_bfd)) | |
5003 | { | |
5004 | reloc_size = 31; | |
5005 | byte_size = 4; | |
5006 | } | |
5007 | else | |
5008 | return FALSE; | |
5009 | ||
5010 | sec = h->root.u.def.section; | |
5011 | osec = sec->output_section; | |
5012 | oindx = osec->target_index; | |
5013 | p = sec->contents + h->root.u.def.value; | |
5014 | ||
5015 | hentry = h->descriptor; | |
5016 | BFD_ASSERT (hentry != NULL | |
5017 | && (hentry->root.type == bfd_link_hash_defined | |
5018 | || hentry->root.type == bfd_link_hash_defweak)); | |
5019 | esec = hentry->root.u.def.section; | |
5020 | ||
5021 | irel = finfo->section_info[oindx].relocs + osec->reloc_count; | |
5022 | irel->r_vaddr = (osec->vma | |
5023 | + sec->output_offset | |
5024 | + h->root.u.def.value); | |
5025 | irel->r_symndx = esec->output_section->target_index; | |
5026 | irel->r_type = R_POS; | |
5027 | irel->r_size = reloc_size; | |
5028 | finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; | |
5029 | ++osec->reloc_count; | |
5030 | ||
5031 | ldrel.l_vaddr = irel->r_vaddr; | |
5032 | if (strcmp (esec->output_section->name, ".text") == 0) | |
5033 | ldrel.l_symndx = 0; | |
5034 | else if (strcmp (esec->output_section->name, ".data") == 0) | |
5035 | ldrel.l_symndx = 1; | |
5036 | else if (strcmp (esec->output_section->name, ".bss") == 0) | |
5037 | ldrel.l_symndx = 2; | |
5038 | else | |
5039 | { | |
5040 | (*_bfd_error_handler) | |
5041 | (_("%s: loader reloc in unrecognized section `%s'"), | |
5042 | bfd_get_filename (output_bfd), | |
5043 | esec->output_section->name); | |
5044 | bfd_set_error (bfd_error_nonrepresentable_section); | |
5045 | return FALSE; | |
5046 | } | |
5047 | ldrel.l_rtype = (reloc_size << 8) | R_POS; | |
5048 | ldrel.l_rsecnm = oindx; | |
5049 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); | |
5050 | finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd); | |
5051 | ||
5052 | /* There are three items to write out, | |
5053 | the address of the code | |
5054 | the address of the toc anchor | |
5055 | the environment pointer. | |
5056 | We are ignoring the environment pointer. So set it to zero. */ | |
5057 | if (bfd_xcoff_is_xcoff64 (output_bfd)) | |
5058 | { | |
5059 | bfd_put_64 (output_bfd, | |
5060 | (esec->output_section->vma + esec->output_offset | |
5061 | + hentry->root.u.def.value), | |
5062 | p); | |
5063 | bfd_put_64 (output_bfd, xcoff_data (output_bfd)->toc, p + 8); | |
5064 | bfd_put_64 (output_bfd, (bfd_vma) 0, p + 16); | |
5065 | } | |
5066 | else | |
5067 | { | |
5068 | /* 32 bit backend | |
5069 | This logic was already called above so the error case where | |
5070 | the backend is neither has already been checked. */ | |
5071 | bfd_put_32 (output_bfd, | |
5072 | (esec->output_section->vma + esec->output_offset | |
5073 | + hentry->root.u.def.value), | |
5074 | p); | |
5075 | bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4); | |
5076 | bfd_put_32 (output_bfd, (bfd_vma) 0, p + 8); | |
5077 | } | |
252b5132 | 5078 | |
116c20d2 NC |
5079 | tsec = coff_section_from_bfd_index (output_bfd, |
5080 | xcoff_data (output_bfd)->sntoc); | |
252b5132 | 5081 | |
116c20d2 NC |
5082 | ++irel; |
5083 | irel->r_vaddr = (osec->vma | |
5084 | + sec->output_offset | |
5085 | + h->root.u.def.value | |
5086 | + byte_size); | |
5087 | irel->r_symndx = tsec->output_section->target_index; | |
5088 | irel->r_type = R_POS; | |
5089 | irel->r_size = reloc_size; | |
5090 | finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; | |
5091 | ++osec->reloc_count; | |
252b5132 | 5092 | |
116c20d2 NC |
5093 | ldrel.l_vaddr = irel->r_vaddr; |
5094 | if (strcmp (tsec->output_section->name, ".text") == 0) | |
5095 | ldrel.l_symndx = 0; | |
5096 | else if (strcmp (tsec->output_section->name, ".data") == 0) | |
5097 | ldrel.l_symndx = 1; | |
5098 | else if (strcmp (tsec->output_section->name, ".bss") == 0) | |
5099 | ldrel.l_symndx = 2; | |
5100 | else | |
5101 | { | |
5102 | (*_bfd_error_handler) | |
5103 | (_("%s: loader reloc in unrecognized section `%s'"), | |
5104 | bfd_get_filename (output_bfd), | |
5105 | tsec->output_section->name); | |
5106 | bfd_set_error (bfd_error_nonrepresentable_section); | |
5107 | return FALSE; | |
5108 | } | |
5109 | ldrel.l_rtype = (reloc_size << 8) | R_POS; | |
5110 | ldrel.l_rsecnm = oindx; | |
5111 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); | |
5112 | finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd); | |
5113 | } | |
252b5132 | 5114 | |
116c20d2 NC |
5115 | if (h->indx >= 0 || finfo->info->strip == strip_all) |
5116 | { | |
5117 | BFD_ASSERT (outsym == finfo->outsyms); | |
5118 | return TRUE; | |
5119 | } | |
beb1bf64 | 5120 | |
116c20d2 NC |
5121 | if (h->indx != -2 |
5122 | && (finfo->info->strip == strip_all | |
5123 | || (finfo->info->strip == strip_some | |
5124 | && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string, | |
5125 | FALSE, FALSE) == NULL))) | |
5126 | { | |
5127 | BFD_ASSERT (outsym == finfo->outsyms); | |
5128 | return TRUE; | |
5129 | } | |
dc810e39 | 5130 | |
116c20d2 NC |
5131 | if (h->indx != -2 |
5132 | && (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0) | |
5133 | { | |
5134 | BFD_ASSERT (outsym == finfo->outsyms); | |
5135 | return TRUE; | |
5136 | } | |
dc810e39 | 5137 | |
116c20d2 | 5138 | memset (&aux, 0, sizeof aux); |
252b5132 | 5139 | |
116c20d2 | 5140 | h->indx = obj_raw_syment_count (output_bfd); |
dc810e39 | 5141 | |
116c20d2 NC |
5142 | result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &isym, |
5143 | h->root.root.string); | |
5144 | if (!result) | |
5145 | return FALSE; | |
dc810e39 | 5146 | |
116c20d2 NC |
5147 | if (h->root.type == bfd_link_hash_undefined |
5148 | || h->root.type == bfd_link_hash_undefweak) | |
5149 | { | |
5150 | isym.n_value = 0; | |
5151 | isym.n_scnum = N_UNDEF; | |
5152 | isym.n_sclass = C_EXT; | |
5153 | aux.x_csect.x_smtyp = XTY_ER; | |
5154 | } | |
5155 | else if ((h->root.type == bfd_link_hash_defined | |
5156 | || h->root.type == bfd_link_hash_defweak) | |
5157 | && h->smclas == XMC_XO) | |
5158 | { | |
5159 | BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section)); | |
5160 | isym.n_value = h->root.u.def.value; | |
5161 | isym.n_scnum = N_UNDEF; | |
5162 | isym.n_sclass = C_EXT; | |
5163 | aux.x_csect.x_smtyp = XTY_ER; | |
5164 | } | |
5165 | else if (h->root.type == bfd_link_hash_defined | |
5166 | || h->root.type == bfd_link_hash_defweak) | |
5167 | { | |
5168 | struct xcoff_link_size_list *l; | |
252b5132 | 5169 | |
116c20d2 NC |
5170 | isym.n_value = (h->root.u.def.section->output_section->vma |
5171 | + h->root.u.def.section->output_offset | |
5172 | + h->root.u.def.value); | |
5173 | if (bfd_is_abs_section (h->root.u.def.section->output_section)) | |
5174 | isym.n_scnum = N_ABS; | |
5175 | else | |
5176 | isym.n_scnum = h->root.u.def.section->output_section->target_index; | |
5177 | isym.n_sclass = C_HIDEXT; | |
5178 | aux.x_csect.x_smtyp = XTY_SD; | |
252b5132 | 5179 | |
116c20d2 NC |
5180 | if ((h->flags & XCOFF_HAS_SIZE) != 0) |
5181 | { | |
5182 | for (l = xcoff_hash_table (finfo->info)->size_list; | |
5183 | l != NULL; | |
5184 | l = l->next) | |
5185 | { | |
5186 | if (l->h == h) | |
5187 | { | |
5188 | aux.x_csect.x_scnlen.l = l->size; | |
dc810e39 AM |
5189 | break; |
5190 | } | |
5191 | } | |
dc810e39 | 5192 | } |
252b5132 | 5193 | } |
116c20d2 NC |
5194 | else if (h->root.type == bfd_link_hash_common) |
5195 | { | |
5196 | isym.n_value = (h->root.u.c.p->section->output_section->vma | |
5197 | + h->root.u.c.p->section->output_offset); | |
5198 | isym.n_scnum = h->root.u.c.p->section->output_section->target_index; | |
5199 | isym.n_sclass = C_EXT; | |
5200 | aux.x_csect.x_smtyp = XTY_CM; | |
5201 | aux.x_csect.x_scnlen.l = h->root.u.c.size; | |
5202 | } | |
5203 | else | |
5204 | abort (); | |
5205 | ||
5206 | isym.n_type = T_NULL; | |
5207 | isym.n_numaux = 1; | |
5208 | ||
5209 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); | |
5210 | outsym += bfd_coff_symesz (output_bfd); | |
5211 | ||
5212 | aux.x_csect.x_smclas = h->smclas; | |
5213 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, isym.n_sclass, 0, 1, | |
5214 | (void *) outsym); | |
5215 | outsym += bfd_coff_auxesz (output_bfd); | |
5216 | ||
5217 | if ((h->root.type == bfd_link_hash_defined | |
5218 | || h->root.type == bfd_link_hash_defweak) | |
5219 | && h->smclas != XMC_XO) | |
5220 | { | |
5221 | /* We just output an SD symbol. Now output an LD symbol. */ | |
5222 | h->indx += 2; | |
252b5132 | 5223 | |
116c20d2 NC |
5224 | isym.n_sclass = C_EXT; |
5225 | bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym); | |
5226 | outsym += bfd_coff_symesz (output_bfd); | |
252b5132 | 5227 | |
116c20d2 NC |
5228 | aux.x_csect.x_smtyp = XTY_LD; |
5229 | aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd); | |
5230 | bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, C_EXT, 0, 1, | |
5231 | (void *) outsym); | |
5232 | outsym += bfd_coff_auxesz (output_bfd); | |
252b5132 RH |
5233 | } |
5234 | ||
116c20d2 NC |
5235 | pos = obj_sym_filepos (output_bfd); |
5236 | pos += obj_raw_syment_count (output_bfd) * bfd_coff_symesz (output_bfd); | |
5237 | amt = outsym - finfo->outsyms; | |
5238 | if (bfd_seek (output_bfd, pos, SEEK_SET) != 0 | |
5239 | || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt) | |
5240 | return FALSE; | |
5241 | obj_raw_syment_count (output_bfd) += | |
5242 | (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd); | |
5243 | ||
b34976b6 | 5244 | return TRUE; |
252b5132 RH |
5245 | } |
5246 | ||
116c20d2 | 5247 | /* Handle a link order which is supposed to generate a reloc. */ |
beb1bf64 | 5248 | |
b34976b6 | 5249 | static bfd_boolean |
116c20d2 NC |
5250 | xcoff_reloc_link_order (bfd *output_bfd, |
5251 | struct xcoff_final_link_info *finfo, | |
5252 | asection *output_section, | |
5253 | struct bfd_link_order *link_order) | |
252b5132 | 5254 | { |
116c20d2 NC |
5255 | reloc_howto_type *howto; |
5256 | struct xcoff_link_hash_entry *h; | |
5257 | asection *hsec; | |
5258 | bfd_vma hval; | |
5259 | bfd_vma addend; | |
5260 | struct internal_reloc *irel; | |
5261 | struct xcoff_link_hash_entry **rel_hash_ptr; | |
5262 | struct internal_ldrel ldrel; | |
252b5132 | 5263 | |
116c20d2 NC |
5264 | if (link_order->type == bfd_section_reloc_link_order) |
5265 | /* We need to somehow locate a symbol in the right section. The | |
5266 | symbol must either have a value of zero, or we must adjust | |
5267 | the addend by the value of the symbol. FIXME: Write this | |
5268 | when we need it. The old linker couldn't handle this anyhow. */ | |
5269 | abort (); | |
252b5132 | 5270 | |
116c20d2 NC |
5271 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); |
5272 | if (howto == NULL) | |
e92d460e | 5273 | { |
116c20d2 NC |
5274 | bfd_set_error (bfd_error_bad_value); |
5275 | return FALSE; | |
e92d460e AM |
5276 | } |
5277 | ||
116c20d2 NC |
5278 | h = ((struct xcoff_link_hash_entry *) |
5279 | bfd_wrapped_link_hash_lookup (output_bfd, finfo->info, | |
5280 | link_order->u.reloc.p->u.name, | |
5281 | FALSE, FALSE, TRUE)); | |
5282 | if (h == NULL) | |
5283 | { | |
5284 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
5285 | (finfo->info, link_order->u.reloc.p->u.name, NULL, NULL, (bfd_vma) 0))) | |
5286 | return FALSE; | |
5287 | return TRUE; | |
5288 | } | |
252b5132 | 5289 | |
116c20d2 | 5290 | if (h->root.type == bfd_link_hash_common) |
dc810e39 | 5291 | { |
116c20d2 NC |
5292 | hsec = h->root.u.c.p->section; |
5293 | hval = 0; | |
5294 | } | |
5295 | else if (h->root.type == bfd_link_hash_defined | |
5296 | || h->root.type == bfd_link_hash_defweak) | |
5297 | { | |
5298 | hsec = h->root.u.def.section; | |
5299 | hval = h->root.u.def.value; | |
5300 | } | |
5301 | else | |
5302 | { | |
5303 | hsec = NULL; | |
5304 | hval = 0; | |
5305 | } | |
252b5132 | 5306 | |
116c20d2 NC |
5307 | addend = link_order->u.reloc.p->addend; |
5308 | if (hsec != NULL) | |
5309 | addend += (hsec->output_section->vma | |
5310 | + hsec->output_offset | |
5311 | + hval); | |
252b5132 | 5312 | |
116c20d2 NC |
5313 | if (addend != 0) |
5314 | { | |
5315 | bfd_size_type size; | |
5316 | bfd_byte *buf; | |
5317 | bfd_reloc_status_type rstat; | |
5318 | bfd_boolean ok; | |
252b5132 | 5319 | |
116c20d2 NC |
5320 | size = bfd_get_reloc_size (howto); |
5321 | buf = bfd_zmalloc (size); | |
5322 | if (buf == NULL) | |
5323 | return FALSE; | |
252b5132 | 5324 | |
116c20d2 NC |
5325 | rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf); |
5326 | switch (rstat) | |
dc810e39 | 5327 | { |
116c20d2 NC |
5328 | case bfd_reloc_ok: |
5329 | break; | |
5330 | default: | |
5331 | case bfd_reloc_outofrange: | |
5332 | abort (); | |
5333 | case bfd_reloc_overflow: | |
5334 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
5335 | (finfo->info, NULL, link_order->u.reloc.p->u.name, | |
5336 | howto->name, addend, NULL, NULL, (bfd_vma) 0))) | |
5337 | { | |
5338 | free (buf); | |
5339 | return FALSE; | |
5340 | } | |
5341 | break; | |
5342 | } | |
5343 | ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf, | |
5344 | (file_ptr) link_order->offset, size); | |
5345 | free (buf); | |
5346 | if (! ok) | |
5347 | return FALSE; | |
5348 | } | |
252b5132 | 5349 | |
116c20d2 NC |
5350 | /* Store the reloc information in the right place. It will get |
5351 | swapped and written out at the end of the final_link routine. */ | |
5352 | irel = (finfo->section_info[output_section->target_index].relocs | |
5353 | + output_section->reloc_count); | |
5354 | rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes | |
5355 | + output_section->reloc_count); | |
252b5132 | 5356 | |
116c20d2 NC |
5357 | memset (irel, 0, sizeof (struct internal_reloc)); |
5358 | *rel_hash_ptr = NULL; | |
252b5132 | 5359 | |
116c20d2 | 5360 | irel->r_vaddr = output_section->vma + link_order->offset; |
252b5132 | 5361 | |
116c20d2 NC |
5362 | if (h->indx >= 0) |
5363 | irel->r_symndx = h->indx; | |
5364 | else | |
5365 | { | |
5366 | /* Set the index to -2 to force this symbol to get written out. */ | |
5367 | h->indx = -2; | |
5368 | *rel_hash_ptr = h; | |
5369 | irel->r_symndx = 0; | |
5370 | } | |
252b5132 | 5371 | |
116c20d2 NC |
5372 | irel->r_type = howto->type; |
5373 | irel->r_size = howto->bitsize - 1; | |
5374 | if (howto->complain_on_overflow == complain_overflow_signed) | |
5375 | irel->r_size |= 0x80; | |
beb1bf64 | 5376 | |
116c20d2 | 5377 | ++output_section->reloc_count; |
dc810e39 | 5378 | |
116c20d2 | 5379 | /* Now output the reloc to the .loader section. */ |
dc810e39 | 5380 | |
116c20d2 | 5381 | ldrel.l_vaddr = irel->r_vaddr; |
dc810e39 | 5382 | |
116c20d2 NC |
5383 | if (hsec != NULL) |
5384 | { | |
5385 | const char *secname; | |
dc810e39 | 5386 | |
116c20d2 NC |
5387 | secname = hsec->output_section->name; |
5388 | ||
5389 | if (strcmp (secname, ".text") == 0) | |
5390 | ldrel.l_symndx = 0; | |
5391 | else if (strcmp (secname, ".data") == 0) | |
5392 | ldrel.l_symndx = 1; | |
5393 | else if (strcmp (secname, ".bss") == 0) | |
5394 | ldrel.l_symndx = 2; | |
5395 | else | |
dc810e39 | 5396 | { |
116c20d2 NC |
5397 | (*_bfd_error_handler) |
5398 | (_("%s: loader reloc in unrecognized section `%s'"), | |
5399 | bfd_get_filename (output_bfd), secname); | |
5400 | bfd_set_error (bfd_error_nonrepresentable_section); | |
5401 | return FALSE; | |
dc810e39 | 5402 | } |
116c20d2 NC |
5403 | } |
5404 | else | |
5405 | { | |
5406 | if (h->ldindx < 0) | |
dc810e39 | 5407 | { |
116c20d2 NC |
5408 | (*_bfd_error_handler) |
5409 | (_("%s: `%s' in loader reloc but not loader sym"), | |
5410 | bfd_get_filename (output_bfd), | |
5411 | h->root.root.string); | |
5412 | bfd_set_error (bfd_error_bad_value); | |
5413 | return FALSE; | |
5414 | } | |
5415 | ldrel.l_symndx = h->ldindx; | |
beb1bf64 | 5416 | } |
dc810e39 | 5417 | |
116c20d2 NC |
5418 | ldrel.l_rtype = (irel->r_size << 8) | irel->r_type; |
5419 | ldrel.l_rsecnm = output_section->target_index; | |
5420 | bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); | |
5421 | finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd); | |
beb1bf64 | 5422 | |
116c20d2 NC |
5423 | return TRUE; |
5424 | } | |
beb1bf64 | 5425 | |
116c20d2 | 5426 | /* Do the final link step. */ |
beb1bf64 | 5427 | |
116c20d2 NC |
5428 | bfd_boolean |
5429 | _bfd_xcoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info) | |
5430 | { | |
5431 | bfd_size_type symesz; | |
5432 | struct xcoff_final_link_info finfo; | |
5433 | asection *o; | |
5434 | struct bfd_link_order *p; | |
5435 | bfd_size_type max_contents_size; | |
5436 | bfd_size_type max_sym_count; | |
5437 | bfd_size_type max_lineno_count; | |
5438 | bfd_size_type max_reloc_count; | |
5439 | bfd_size_type max_output_reloc_count; | |
5440 | file_ptr rel_filepos; | |
5441 | unsigned int relsz; | |
5442 | file_ptr line_filepos; | |
5443 | unsigned int linesz; | |
5444 | bfd *sub; | |
5445 | bfd_byte *external_relocs = NULL; | |
5446 | char strbuf[STRING_SIZE_SIZE]; | |
5447 | file_ptr pos; | |
5448 | bfd_size_type amt; | |
dc810e39 | 5449 | |
116c20d2 NC |
5450 | if (info->shared) |
5451 | abfd->flags |= DYNAMIC; | |
dc810e39 | 5452 | |
116c20d2 | 5453 | symesz = bfd_coff_symesz (abfd); |
dc810e39 | 5454 | |
116c20d2 NC |
5455 | finfo.info = info; |
5456 | finfo.output_bfd = abfd; | |
5457 | finfo.strtab = NULL; | |
5458 | finfo.section_info = NULL; | |
5459 | finfo.last_file_index = -1; | |
5460 | finfo.toc_symindx = -1; | |
5461 | finfo.internal_syms = NULL; | |
5462 | finfo.sym_indices = NULL; | |
5463 | finfo.outsyms = NULL; | |
5464 | finfo.linenos = NULL; | |
5465 | finfo.contents = NULL; | |
5466 | finfo.external_relocs = NULL; | |
252b5132 | 5467 | |
116c20d2 NC |
5468 | finfo.ldsym = (xcoff_hash_table (info)->loader_section->contents |
5469 | + bfd_xcoff_ldhdrsz (abfd)); | |
5470 | finfo.ldrel = (xcoff_hash_table (info)->loader_section->contents | |
5471 | + bfd_xcoff_ldhdrsz(abfd) | |
5472 | + (xcoff_hash_table (info)->ldhdr.l_nsyms | |
5473 | * bfd_xcoff_ldsymsz(abfd))); | |
252b5132 | 5474 | |
116c20d2 | 5475 | xcoff_data (abfd)->coff.link_info = info; |
beb1bf64 | 5476 | |
116c20d2 NC |
5477 | finfo.strtab = _bfd_stringtab_init (); |
5478 | if (finfo.strtab == NULL) | |
5479 | goto error_return; | |
beb1bf64 | 5480 | |
116c20d2 NC |
5481 | /* Count the line number and relocation entries required for the |
5482 | output file. Determine a few maximum sizes. */ | |
5483 | max_contents_size = 0; | |
5484 | max_lineno_count = 0; | |
5485 | max_reloc_count = 0; | |
5486 | for (o = abfd->sections; o != NULL; o = o->next) | |
5487 | { | |
5488 | o->reloc_count = 0; | |
5489 | o->lineno_count = 0; | |
8423293d | 5490 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
dc810e39 | 5491 | { |
116c20d2 NC |
5492 | if (p->type == bfd_indirect_link_order) |
5493 | { | |
5494 | asection *sec; | |
dc810e39 | 5495 | |
116c20d2 | 5496 | sec = p->u.indirect.section; |
beb1bf64 | 5497 | |
116c20d2 NC |
5498 | /* Mark all sections which are to be included in the |
5499 | link. This will normally be every section. We need | |
5500 | to do this so that we can identify any sections which | |
5501 | the linker has decided to not include. */ | |
5502 | sec->linker_mark = TRUE; | |
beb1bf64 | 5503 | |
116c20d2 NC |
5504 | if (info->strip == strip_none |
5505 | || info->strip == strip_some) | |
5506 | o->lineno_count += sec->lineno_count; | |
beb1bf64 | 5507 | |
116c20d2 | 5508 | o->reloc_count += sec->reloc_count; |
dc810e39 | 5509 | |
116c20d2 NC |
5510 | if (sec->rawsize > max_contents_size) |
5511 | max_contents_size = sec->rawsize; | |
5512 | if (sec->size > max_contents_size) | |
5513 | max_contents_size = sec->size; | |
5514 | if (sec->lineno_count > max_lineno_count) | |
5515 | max_lineno_count = sec->lineno_count; | |
5516 | if (coff_section_data (sec->owner, sec) != NULL | |
5517 | && xcoff_section_data (sec->owner, sec) != NULL | |
5518 | && (xcoff_section_data (sec->owner, sec)->lineno_count | |
5519 | > max_lineno_count)) | |
5520 | max_lineno_count = | |
5521 | xcoff_section_data (sec->owner, sec)->lineno_count; | |
5522 | if (sec->reloc_count > max_reloc_count) | |
5523 | max_reloc_count = sec->reloc_count; | |
5524 | } | |
5525 | else if (p->type == bfd_section_reloc_link_order | |
5526 | || p->type == bfd_symbol_reloc_link_order) | |
5527 | ++o->reloc_count; | |
dc810e39 | 5528 | } |
116c20d2 | 5529 | } |
252b5132 | 5530 | |
116c20d2 NC |
5531 | /* Compute the file positions for all the sections. */ |
5532 | if (abfd->output_has_begun) | |
5533 | { | |
5534 | if (xcoff_hash_table (info)->file_align != 0) | |
5535 | abort (); | |
5536 | } | |
5537 | else | |
5538 | { | |
5539 | bfd_vma file_align; | |
252b5132 | 5540 | |
116c20d2 NC |
5541 | file_align = xcoff_hash_table (info)->file_align; |
5542 | if (file_align != 0) | |
dc810e39 | 5543 | { |
116c20d2 NC |
5544 | bfd_boolean saw_contents; |
5545 | int indx; | |
116c20d2 | 5546 | file_ptr sofar; |
252b5132 | 5547 | |
116c20d2 NC |
5548 | /* Insert .pad sections before every section which has |
5549 | contents and is loaded, if it is preceded by some other | |
5550 | section which has contents and is loaded. */ | |
5551 | saw_contents = TRUE; | |
04dd1667 | 5552 | for (o = abfd->sections; o != NULL; o = o->next) |
116c20d2 | 5553 | { |
04dd1667 | 5554 | if (strcmp (o->name, ".pad") == 0) |
116c20d2 | 5555 | saw_contents = FALSE; |
04dd1667 AM |
5556 | else if ((o->flags & SEC_HAS_CONTENTS) != 0 |
5557 | && (o->flags & SEC_LOAD) != 0) | |
116c20d2 NC |
5558 | { |
5559 | if (! saw_contents) | |
5560 | saw_contents = TRUE; | |
5561 | else | |
5562 | { | |
5daa8fe7 | 5563 | asection *n; |
252b5132 | 5564 | |
116c20d2 NC |
5565 | /* Create a pad section and place it before the section |
5566 | that needs padding. This requires unlinking and | |
5567 | relinking the bfd's section list. */ | |
252b5132 | 5568 | |
117ed4f8 AM |
5569 | n = bfd_make_section_anyway_with_flags (abfd, ".pad", |
5570 | SEC_HAS_CONTENTS); | |
116c20d2 | 5571 | n->alignment_power = 0; |
252b5132 | 5572 | |
5daa8fe7 | 5573 | bfd_section_list_remove (abfd, n); |
04dd1667 | 5574 | bfd_section_list_insert_before (abfd, o, n); |
116c20d2 NC |
5575 | saw_contents = FALSE; |
5576 | } | |
5577 | } | |
5578 | } | |
5579 | ||
5580 | /* Reset the section indices after inserting the new | |
5581 | sections. */ | |
5582 | indx = 0; | |
5583 | for (o = abfd->sections; o != NULL; o = o->next) | |
5584 | { | |
5585 | ++indx; | |
5586 | o->target_index = indx; | |
5587 | } | |
5588 | BFD_ASSERT ((unsigned int) indx == abfd->section_count); | |
5589 | ||
5590 | /* Work out appropriate sizes for the .pad sections to force | |
5591 | each section to land on a page boundary. This bit of | |
5592 | code knows what compute_section_file_positions is going | |
5593 | to do. */ | |
5594 | sofar = bfd_coff_filhsz (abfd); | |
5595 | sofar += bfd_coff_aoutsz (abfd); | |
5596 | sofar += abfd->section_count * bfd_coff_scnhsz (abfd); | |
5597 | for (o = abfd->sections; o != NULL; o = o->next) | |
5598 | if ((bfd_xcoff_is_reloc_count_overflow | |
5599 | (abfd, (bfd_vma) o->reloc_count)) | |
5600 | || (bfd_xcoff_is_lineno_count_overflow | |
5601 | (abfd, (bfd_vma) o->lineno_count))) | |
5602 | /* 64 does not overflow, need to check if 32 does */ | |
5603 | sofar += bfd_coff_scnhsz (abfd); | |
252b5132 | 5604 | |
116c20d2 | 5605 | for (o = abfd->sections; o != NULL; o = o->next) |
dc810e39 | 5606 | { |
116c20d2 NC |
5607 | if (strcmp (o->name, ".pad") == 0) |
5608 | { | |
5609 | bfd_vma pageoff; | |
252b5132 | 5610 | |
116c20d2 NC |
5611 | BFD_ASSERT (o->size == 0); |
5612 | pageoff = sofar & (file_align - 1); | |
5613 | if (pageoff != 0) | |
5614 | { | |
5615 | o->size = file_align - pageoff; | |
5616 | sofar += file_align - pageoff; | |
5617 | o->flags |= SEC_HAS_CONTENTS; | |
5618 | } | |
5619 | } | |
5620 | else | |
5621 | { | |
5622 | if ((o->flags & SEC_HAS_CONTENTS) != 0) | |
5623 | sofar += BFD_ALIGN (o->size, | |
5624 | 1 << o->alignment_power); | |
5625 | } | |
252b5132 RH |
5626 | } |
5627 | } | |
116c20d2 NC |
5628 | |
5629 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
5630 | goto error_return; | |
252b5132 RH |
5631 | } |
5632 | ||
116c20d2 NC |
5633 | /* Allocate space for the pointers we need to keep for the relocs. */ |
5634 | { | |
5635 | unsigned int i; | |
dc810e39 | 5636 | |
116c20d2 NC |
5637 | /* We use section_count + 1, rather than section_count, because |
5638 | the target_index fields are 1 based. */ | |
5639 | amt = abfd->section_count + 1; | |
5640 | amt *= sizeof (struct xcoff_link_section_info); | |
5641 | finfo.section_info = bfd_malloc (amt); | |
5642 | if (finfo.section_info == NULL) | |
5643 | goto error_return; | |
5644 | for (i = 0; i <= abfd->section_count; i++) | |
5645 | { | |
5646 | finfo.section_info[i].relocs = NULL; | |
5647 | finfo.section_info[i].rel_hashes = NULL; | |
5648 | finfo.section_info[i].toc_rel_hashes = NULL; | |
5649 | } | |
5650 | } | |
beb1bf64 | 5651 | |
116c20d2 NC |
5652 | /* Set the file positions for the relocs. */ |
5653 | rel_filepos = obj_relocbase (abfd); | |
5654 | relsz = bfd_coff_relsz (abfd); | |
5655 | max_output_reloc_count = 0; | |
5656 | for (o = abfd->sections; o != NULL; o = o->next) | |
5657 | { | |
5658 | if (o->reloc_count == 0) | |
5659 | o->rel_filepos = 0; | |
dc810e39 AM |
5660 | else |
5661 | { | |
116c20d2 NC |
5662 | /* A stripped file has no relocs. However, we still |
5663 | allocate the buffers, so that later code doesn't have to | |
5664 | worry about whether we are stripping or not. */ | |
5665 | if (info->strip == strip_all) | |
5666 | o->rel_filepos = 0; | |
5667 | else | |
5668 | { | |
5669 | o->flags |= SEC_RELOC; | |
5670 | o->rel_filepos = rel_filepos; | |
5671 | rel_filepos += o->reloc_count * relsz; | |
5672 | } | |
252b5132 | 5673 | |
116c20d2 NC |
5674 | /* We don't know the indices of global symbols until we have |
5675 | written out all the local symbols. For each section in | |
5676 | the output file, we keep an array of pointers to hash | |
5677 | table entries. Each entry in the array corresponds to a | |
5678 | reloc. When we find a reloc against a global symbol, we | |
5679 | set the corresponding entry in this array so that we can | |
5680 | fix up the symbol index after we have written out all the | |
5681 | local symbols. | |
252b5132 | 5682 | |
116c20d2 NC |
5683 | Because of this problem, we also keep the relocs in |
5684 | memory until the end of the link. This wastes memory. | |
5685 | We could backpatch the file later, I suppose, although it | |
5686 | would be slow. */ | |
5687 | amt = o->reloc_count; | |
5688 | amt *= sizeof (struct internal_reloc); | |
5689 | finfo.section_info[o->target_index].relocs = bfd_malloc (amt); | |
252b5132 | 5690 | |
116c20d2 NC |
5691 | amt = o->reloc_count; |
5692 | amt *= sizeof (struct xcoff_link_hash_entry *); | |
5693 | finfo.section_info[o->target_index].rel_hashes = bfd_malloc (amt); | |
252b5132 | 5694 | |
116c20d2 NC |
5695 | if (finfo.section_info[o->target_index].relocs == NULL |
5696 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
5697 | goto error_return; | |
beb1bf64 | 5698 | |
116c20d2 NC |
5699 | if (o->reloc_count > max_output_reloc_count) |
5700 | max_output_reloc_count = o->reloc_count; | |
dc810e39 | 5701 | } |
116c20d2 | 5702 | } |
dc810e39 | 5703 | |
116c20d2 NC |
5704 | /* We now know the size of the relocs, so we can determine the file |
5705 | positions of the line numbers. */ | |
5706 | line_filepos = rel_filepos; | |
5707 | finfo.line_filepos = line_filepos; | |
5708 | linesz = bfd_coff_linesz (abfd); | |
5709 | for (o = abfd->sections; o != NULL; o = o->next) | |
5710 | { | |
5711 | if (o->lineno_count == 0) | |
5712 | o->line_filepos = 0; | |
252b5132 RH |
5713 | else |
5714 | { | |
116c20d2 NC |
5715 | o->line_filepos = line_filepos; |
5716 | line_filepos += o->lineno_count * linesz; | |
252b5132 | 5717 | } |
252b5132 | 5718 | |
116c20d2 NC |
5719 | /* Reset the reloc and lineno counts, so that we can use them to |
5720 | count the number of entries we have output so far. */ | |
5721 | o->reloc_count = 0; | |
5722 | o->lineno_count = 0; | |
252b5132 RH |
5723 | } |
5724 | ||
116c20d2 | 5725 | obj_sym_filepos (abfd) = line_filepos; |
252b5132 | 5726 | |
116c20d2 NC |
5727 | /* Figure out the largest number of symbols in an input BFD. Take |
5728 | the opportunity to clear the output_has_begun fields of all the | |
5729 | input BFD's. We want at least 6 symbols, since that is the | |
5730 | number which xcoff_write_global_symbol may need. */ | |
5731 | max_sym_count = 6; | |
5732 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
252b5132 | 5733 | { |
116c20d2 NC |
5734 | bfd_size_type sz; |
5735 | ||
5736 | sub->output_has_begun = FALSE; | |
5737 | sz = obj_raw_syment_count (sub); | |
5738 | if (sz > max_sym_count) | |
5739 | max_sym_count = sz; | |
252b5132 RH |
5740 | } |
5741 | ||
116c20d2 NC |
5742 | /* Allocate some buffers used while linking. */ |
5743 | amt = max_sym_count * sizeof (struct internal_syment); | |
5744 | finfo.internal_syms = bfd_malloc (amt); | |
252b5132 | 5745 | |
116c20d2 NC |
5746 | amt = max_sym_count * sizeof (long); |
5747 | finfo.sym_indices = bfd_malloc (amt); | |
252b5132 | 5748 | |
116c20d2 NC |
5749 | amt = (max_sym_count + 1) * symesz; |
5750 | finfo.outsyms = bfd_malloc (amt); | |
252b5132 | 5751 | |
116c20d2 NC |
5752 | amt = max_lineno_count * bfd_coff_linesz (abfd); |
5753 | finfo.linenos = bfd_malloc (amt); | |
252b5132 | 5754 | |
116c20d2 NC |
5755 | amt = max_contents_size; |
5756 | finfo.contents = bfd_malloc (amt); | |
252b5132 | 5757 | |
116c20d2 NC |
5758 | amt = max_reloc_count * relsz; |
5759 | finfo.external_relocs = bfd_malloc (amt); | |
5760 | ||
5761 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
5762 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
5763 | || finfo.outsyms == NULL | |
5764 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
5765 | || (finfo.contents == NULL && max_contents_size > 0) | |
5766 | || (finfo.external_relocs == NULL && max_reloc_count > 0)) | |
5767 | goto error_return; | |
5768 | ||
5769 | obj_raw_syment_count (abfd) = 0; | |
47dfb2ca RS |
5770 | |
5771 | /* Find a TOC symbol, if we need one. */ | |
5772 | if (!xcoff_find_tc0 (abfd, &finfo)) | |
5773 | goto error_return; | |
116c20d2 NC |
5774 | |
5775 | /* We now know the position of everything in the file, except that | |
5776 | we don't know the size of the symbol table and therefore we don't | |
5777 | know where the string table starts. We just build the string | |
5778 | table in memory as we go along. We process all the relocations | |
5779 | for a single input file at once. */ | |
5780 | for (o = abfd->sections; o != NULL; o = o->next) | |
5781 | { | |
8423293d | 5782 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
252b5132 | 5783 | { |
116c20d2 NC |
5784 | if (p->type == bfd_indirect_link_order |
5785 | && p->u.indirect.section->owner->xvec == abfd->xvec) | |
252b5132 | 5786 | { |
116c20d2 NC |
5787 | sub = p->u.indirect.section->owner; |
5788 | if (! sub->output_has_begun) | |
252b5132 | 5789 | { |
116c20d2 NC |
5790 | if (! xcoff_link_input_bfd (&finfo, sub)) |
5791 | goto error_return; | |
5792 | sub->output_has_begun = TRUE; | |
252b5132 RH |
5793 | } |
5794 | } | |
116c20d2 NC |
5795 | else if (p->type == bfd_section_reloc_link_order |
5796 | || p->type == bfd_symbol_reloc_link_order) | |
5797 | { | |
5798 | if (! xcoff_reloc_link_order (abfd, &finfo, o, p)) | |
5799 | goto error_return; | |
5800 | } | |
5801 | else | |
5802 | { | |
5803 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
5804 | goto error_return; | |
5805 | } | |
252b5132 RH |
5806 | } |
5807 | } | |
116c20d2 NC |
5808 | |
5809 | /* Free up the buffers used by xcoff_link_input_bfd. */ | |
5810 | if (finfo.internal_syms != NULL) | |
252b5132 | 5811 | { |
116c20d2 NC |
5812 | free (finfo.internal_syms); |
5813 | finfo.internal_syms = NULL; | |
5814 | } | |
5815 | if (finfo.sym_indices != NULL) | |
5816 | { | |
5817 | free (finfo.sym_indices); | |
5818 | finfo.sym_indices = NULL; | |
5819 | } | |
5820 | if (finfo.linenos != NULL) | |
5821 | { | |
5822 | free (finfo.linenos); | |
5823 | finfo.linenos = NULL; | |
5824 | } | |
5825 | if (finfo.contents != NULL) | |
5826 | { | |
5827 | free (finfo.contents); | |
5828 | finfo.contents = NULL; | |
5829 | } | |
5830 | if (finfo.external_relocs != NULL) | |
5831 | { | |
5832 | free (finfo.external_relocs); | |
5833 | finfo.external_relocs = NULL; | |
252b5132 | 5834 | } |
252b5132 | 5835 | |
116c20d2 NC |
5836 | /* The value of the last C_FILE symbol is supposed to be -1. Write |
5837 | it out again. */ | |
5838 | if (finfo.last_file_index != -1) | |
5839 | { | |
5840 | finfo.last_file.n_value = -(bfd_vma) 1; | |
5841 | bfd_coff_swap_sym_out (abfd, (void *) &finfo.last_file, | |
5842 | (void *) finfo.outsyms); | |
5843 | pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz; | |
5844 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 | |
5845 | || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz) | |
5846 | goto error_return; | |
5847 | } | |
252b5132 | 5848 | |
116c20d2 NC |
5849 | /* Write out all the global symbols which do not come from XCOFF |
5850 | input files. */ | |
5851 | xcoff_link_hash_traverse (xcoff_hash_table (info), | |
5852 | xcoff_write_global_symbol, | |
5853 | (void *) &finfo); | |
252b5132 | 5854 | |
116c20d2 | 5855 | if (finfo.outsyms != NULL) |
252b5132 | 5856 | { |
116c20d2 NC |
5857 | free (finfo.outsyms); |
5858 | finfo.outsyms = NULL; | |
5859 | } | |
252b5132 | 5860 | |
116c20d2 NC |
5861 | /* Now that we have written out all the global symbols, we know the |
5862 | symbol indices to use for relocs against them, and we can finally | |
5863 | write out the relocs. */ | |
5864 | amt = max_output_reloc_count * relsz; | |
5865 | external_relocs = bfd_malloc (amt); | |
5866 | if (external_relocs == NULL && max_output_reloc_count != 0) | |
5867 | goto error_return; | |
252b5132 | 5868 | |
116c20d2 NC |
5869 | for (o = abfd->sections; o != NULL; o = o->next) |
5870 | { | |
5871 | struct internal_reloc *irel; | |
5872 | struct internal_reloc *irelend; | |
5873 | struct xcoff_link_hash_entry **rel_hash; | |
5874 | struct xcoff_toc_rel_hash *toc_rel_hash; | |
5875 | bfd_byte *erel; | |
5876 | bfd_size_type rel_size; | |
252b5132 | 5877 | |
116c20d2 NC |
5878 | /* A stripped file has no relocs. */ |
5879 | if (info->strip == strip_all) | |
5880 | { | |
5881 | o->reloc_count = 0; | |
5882 | continue; | |
5883 | } | |
252b5132 | 5884 | |
116c20d2 NC |
5885 | if (o->reloc_count == 0) |
5886 | continue; | |
252b5132 | 5887 | |
116c20d2 NC |
5888 | irel = finfo.section_info[o->target_index].relocs; |
5889 | irelend = irel + o->reloc_count; | |
5890 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
5891 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
5892 | { | |
5893 | if (*rel_hash != NULL) | |
5894 | { | |
5895 | if ((*rel_hash)->indx < 0) | |
5896 | { | |
5897 | if (! ((*info->callbacks->unattached_reloc) | |
5898 | (info, (*rel_hash)->root.root.string, | |
5899 | NULL, o, irel->r_vaddr))) | |
5900 | goto error_return; | |
5901 | (*rel_hash)->indx = 0; | |
5902 | } | |
5903 | irel->r_symndx = (*rel_hash)->indx; | |
5904 | } | |
5905 | } | |
252b5132 | 5906 | |
116c20d2 NC |
5907 | for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes; |
5908 | toc_rel_hash != NULL; | |
5909 | toc_rel_hash = toc_rel_hash->next) | |
5910 | { | |
5911 | if (toc_rel_hash->h->u.toc_indx < 0) | |
5912 | { | |
5913 | if (! ((*info->callbacks->unattached_reloc) | |
5914 | (info, toc_rel_hash->h->root.root.string, | |
5915 | NULL, o, toc_rel_hash->rel->r_vaddr))) | |
5916 | goto error_return; | |
5917 | toc_rel_hash->h->u.toc_indx = 0; | |
5918 | } | |
5919 | toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx; | |
5920 | } | |
252b5132 | 5921 | |
116c20d2 NC |
5922 | /* XCOFF requires that the relocs be sorted by address. We tend |
5923 | to produce them in the order in which their containing csects | |
5924 | appear in the symbol table, which is not necessarily by | |
5925 | address. So we sort them here. There may be a better way to | |
5926 | do this. */ | |
5927 | qsort ((void *) finfo.section_info[o->target_index].relocs, | |
5928 | o->reloc_count, sizeof (struct internal_reloc), | |
5929 | xcoff_sort_relocs); | |
252b5132 | 5930 | |
116c20d2 NC |
5931 | irel = finfo.section_info[o->target_index].relocs; |
5932 | irelend = irel + o->reloc_count; | |
5933 | erel = external_relocs; | |
5934 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
5935 | bfd_coff_swap_reloc_out (abfd, (void *) irel, (void *) erel); | |
252b5132 | 5936 | |
116c20d2 NC |
5937 | rel_size = relsz * o->reloc_count; |
5938 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
5939 | || bfd_bwrite ((void *) external_relocs, rel_size, abfd) != rel_size) | |
5940 | goto error_return; | |
252b5132 RH |
5941 | } |
5942 | ||
116c20d2 | 5943 | if (external_relocs != NULL) |
252b5132 | 5944 | { |
116c20d2 NC |
5945 | free (external_relocs); |
5946 | external_relocs = NULL; | |
252b5132 RH |
5947 | } |
5948 | ||
116c20d2 NC |
5949 | /* Free up the section information. */ |
5950 | if (finfo.section_info != NULL) | |
252b5132 | 5951 | { |
116c20d2 | 5952 | unsigned int i; |
252b5132 | 5953 | |
116c20d2 | 5954 | for (i = 0; i < abfd->section_count; i++) |
252b5132 | 5955 | { |
116c20d2 NC |
5956 | if (finfo.section_info[i].relocs != NULL) |
5957 | free (finfo.section_info[i].relocs); | |
5958 | if (finfo.section_info[i].rel_hashes != NULL) | |
5959 | free (finfo.section_info[i].rel_hashes); | |
252b5132 | 5960 | } |
116c20d2 NC |
5961 | free (finfo.section_info); |
5962 | finfo.section_info = NULL; | |
252b5132 RH |
5963 | } |
5964 | ||
116c20d2 NC |
5965 | /* Write out the loader section contents. */ |
5966 | BFD_ASSERT ((bfd_byte *) finfo.ldrel | |
5967 | == (xcoff_hash_table (info)->loader_section->contents | |
5968 | + xcoff_hash_table (info)->ldhdr.l_impoff)); | |
5969 | o = xcoff_hash_table (info)->loader_section; | |
5970 | if (! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
5971 | (file_ptr) o->output_offset, o->size)) | |
5972 | goto error_return; | |
252b5132 | 5973 | |
116c20d2 NC |
5974 | /* Write out the magic sections. */ |
5975 | o = xcoff_hash_table (info)->linkage_section; | |
5976 | if (o->size > 0 | |
5977 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
5978 | (file_ptr) o->output_offset, | |
5979 | o->size)) | |
5980 | goto error_return; | |
5981 | o = xcoff_hash_table (info)->toc_section; | |
5982 | if (o->size > 0 | |
5983 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
5984 | (file_ptr) o->output_offset, | |
5985 | o->size)) | |
5986 | goto error_return; | |
5987 | o = xcoff_hash_table (info)->descriptor_section; | |
5988 | if (o->size > 0 | |
5989 | && ! bfd_set_section_contents (abfd, o->output_section, o->contents, | |
5990 | (file_ptr) o->output_offset, | |
5991 | o->size)) | |
5992 | goto error_return; | |
252b5132 | 5993 | |
116c20d2 NC |
5994 | /* Write out the string table. */ |
5995 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; | |
5996 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
5997 | goto error_return; | |
5998 | H_PUT_32 (abfd, | |
5999 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
6000 | strbuf); | |
6001 | amt = STRING_SIZE_SIZE; | |
6002 | if (bfd_bwrite (strbuf, amt, abfd) != amt) | |
6003 | goto error_return; | |
6004 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
6005 | goto error_return; | |
252b5132 | 6006 | |
116c20d2 | 6007 | _bfd_stringtab_free (finfo.strtab); |
252b5132 | 6008 | |
116c20d2 NC |
6009 | /* Write out the debugging string table. */ |
6010 | o = xcoff_hash_table (info)->debug_section; | |
6011 | if (o != NULL) | |
252b5132 | 6012 | { |
116c20d2 | 6013 | struct bfd_strtab_hash *debug_strtab; |
252b5132 | 6014 | |
116c20d2 NC |
6015 | debug_strtab = xcoff_hash_table (info)->debug_strtab; |
6016 | BFD_ASSERT (o->output_section->size - o->output_offset | |
6017 | >= _bfd_stringtab_size (debug_strtab)); | |
6018 | pos = o->output_section->filepos + o->output_offset; | |
6019 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
6020 | goto error_return; | |
6021 | if (! _bfd_stringtab_emit (abfd, debug_strtab)) | |
6022 | goto error_return; | |
6023 | } | |
252b5132 | 6024 | |
116c20d2 NC |
6025 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to |
6026 | not try to write out the symbols. */ | |
6027 | bfd_get_symcount (abfd) = 0; | |
252b5132 | 6028 | |
116c20d2 | 6029 | return TRUE; |
252b5132 | 6030 | |
116c20d2 NC |
6031 | error_return: |
6032 | if (finfo.strtab != NULL) | |
6033 | _bfd_stringtab_free (finfo.strtab); | |
252b5132 | 6034 | |
116c20d2 | 6035 | if (finfo.section_info != NULL) |
252b5132 | 6036 | { |
116c20d2 | 6037 | unsigned int i; |
252b5132 | 6038 | |
116c20d2 | 6039 | for (i = 0; i < abfd->section_count; i++) |
252b5132 | 6040 | { |
116c20d2 NC |
6041 | if (finfo.section_info[i].relocs != NULL) |
6042 | free (finfo.section_info[i].relocs); | |
6043 | if (finfo.section_info[i].rel_hashes != NULL) | |
6044 | free (finfo.section_info[i].rel_hashes); | |
252b5132 | 6045 | } |
116c20d2 | 6046 | free (finfo.section_info); |
252b5132 RH |
6047 | } |
6048 | ||
116c20d2 NC |
6049 | if (finfo.internal_syms != NULL) |
6050 | free (finfo.internal_syms); | |
6051 | if (finfo.sym_indices != NULL) | |
6052 | free (finfo.sym_indices); | |
6053 | if (finfo.outsyms != NULL) | |
6054 | free (finfo.outsyms); | |
6055 | if (finfo.linenos != NULL) | |
6056 | free (finfo.linenos); | |
6057 | if (finfo.contents != NULL) | |
6058 | free (finfo.contents); | |
6059 | if (finfo.external_relocs != NULL) | |
6060 | free (finfo.external_relocs); | |
6061 | if (external_relocs != NULL) | |
6062 | free (external_relocs); | |
6063 | return FALSE; | |
252b5132 | 6064 | } |